2/25/2017:I am updating my review by dropping it from 4 star to 2 star. I did not give it a 1 star as customer service representative Julio & David were very friendly and helpful. Amazon is amazing as it helped with the refund/return process of this printer. The biggest reason the rating was dropped was due to the extruder failing and needing to be replaced. The printer is under warranty for about a year but the extruder is limited to I believe 90 days. I finally had everything working fine and was printing okay, but after one print finished it was failing to calibrate again.I had cleaned the probe, the plates/corners where it touches to get a reading and no matter what I would do it would always fail calibration. I had already mastered how to resolve the calibration issues before but this time it was just failure after failure. I spoke with David by calling XYZPrinting's customer support and he advised to use sand paper to scrape away any residue that might still be on the probe. The probe looked and felt clean even after using the wire brush but amazingly that sand paper method worked. Once calibration was done I also performed a cleaning and that went through with no issue. When it came down to making a new print it began its preheating process and then everything just failed at that point.Prior to starting the actual print, the printer started to make loud popping noises and no filament was extruding. I canceled the job and then the printer started to generate two error codes, began beeping loudly and lights started to go on and off. Error codes received were 0052 (nozzle internal memory error) & 0011 (extruder heating problem). I power cycled the printer and it was stuck in that mode. I had enough of troubleshooting for the day. Interestingly enough when powering on the next day the errors were gone and looked like normal.In doing the cleaning process I noticed that filament was stuck in the shaft even though the nozzle was getting hot. I called XYZ and spoke with Julio which guided me through the cleaning process. As mentioned I had already done the cleaning prior but we tried it again anyways. Julio was extremely helpful, friendly and had setup a skype video call to help troubleshoot the issue. We tried even hotter temps to clear the blockage and tried to floss it out with the tool provided but no luck. In the end the only option was to replace the extruder. In regards to the error codes Julio mentioned it was probably triggered by the extruder being bad.Buyers beware, if you are still under warranty they will only replace one extruder for you, and thats it! If you have problems with the second extruder you have no choice but to pay $96+ for a replacement. I was also disappointed that you have to pay to ship the defective product to them, no return label or wave of shipping fees. Julio stated that this extruder might have been a lemon but that I hopefully shouldn't have issues with the second. Interestingly enough after our call the printer went into error mode again and generated the 0052 error. In doing some research it turns out this is a common problem with these printers and I decided not to gamble on a second part that might be defective.I was using both, PLA direct from XYZ & third party (hatchbox) PLA. In the call with XYZ they advised to use their PLA as with third party PLA there has been an increase of calls on these types of failures on the extruder and auto-feeder. Open filament was the primary reason I bought this printer but if that is going to cause more jams then it is not worth it for me. It doesnt' make sense to pay about the same (or more) for almost half of the amount of filament.In conclusion I will say that the printer is nice but due to the technical issues I experienced and the answer about the filament/extruder option then I will say it is not worth it. Currently I am using a QIDI X-One and it has been a work horse with no major issues. I am willing to try XYZPrinting again in the near future but for now my recommendation is to move on.1/20/2017:I am updating my review with the following changes:I have been able to print a few items with PLA. Some minor issues persist and I believe it is due to settings on my end such as temperature, retraction & speed. For anyone that has issues calibrating I would suggest that as it is calibrating and if it reads out a FAIL error ensure that you raise the bed just enough for it to touch the calibration prod. After that you shouldn't have any issues and follow the instructions by the calibration guide.I have had no issues with any of the prints sliding off and not adhering to the bed. I am using the bed tape sheets provided by XYZ but I am planing on replacing with kaptop tape or a different add-on.I have attached 3 new pictures, one with the completed vase and a female knight. I did not upload the pictures with the bumps on them as I am still working out the kinks on that, but overall it looks nice. I am using a gold PLA filament from hatchbox.As another customer suggested to clear out any ABS junk was to load the PLA filament but at the ABS temperature. I had found similar posts through the amazing community from thingiverse, youtube and other articles but it's always good to get any tips from other people. So again, thank you for the tip fellow amazon shopper.I do not own Simplify 3D but so far in using the stock XYZWare Pro has been fine. I am looking into Simplify 3D or other slicers to tweak more settings and create a temperature tower to help guide me on best settings.For now I have changed my review from 3 to 4 stars and the more I tinker with it the more I like it. Live and learn!**************************************************************************************So far this printer has been okay. The first couple of prints with the ABS material/cartridge (the one in neon yellow) came out good. I did a major test print by printing out this funny vase that took about 25+ hours to complete. As you can see in the picture it did a pretty good job, however closer to the top it began to offset and it looked like there was some delamination on the layers.I like this printer as it was pretty much plug and play. There was no major setup required and I got it going right away. The software has been easy to install and mess with. I like that it transmits via wifi so that is also a plus. The slicing and transmitting can take up to 16+ mins depending on what you are trying to print. Mind you everything is nearby and it is on a wireless AC network. I couldn't find any more details on the wireless parameters besides that it supports WPA/WPA2/WEP, but it looked like it connected to my 5ghz channel no problem.Once I ate up all of the ABS I moved on to PLA, I am testing two currently. One that is straight from XYZPrinting (PLA black) and the other is Hatchbox (Gold) PLA. In using the black PLA I had a major issue with the auto-feeder and a nozzle jam. I was able to clean the nozzle prior to my print and at some point it still clogged. I am going based off the default temperature settings/profile by the XYZPrinting software and recommendations per documentation & tech support recommendation. Notice the picture shows all these little fragments of PLA all over the place and the end of the black PLA filament sanded and broken down. This ended up with the PLA filament getting stuck in the feeding tube. I had to MacGyver my way out of this by cleaning the nozzle the best I could, breaking off the filament closest to the nozzle feed, freeing the extruder partially, feeding more filament down the tube to push the one that was stuck.My box came with a missing wire brush so I had to clean it via other means while I wait for support to get back to me and send me a replacement. Their tech support is okay, I am going based off the ticketing system but they do take 24+ hours to respond so far. I have a few open tickets with them as it's been a cascading effect. The documentation is pretty good and easy to follow but they could have clarified a few steps. So far per the customer reps responses there seems to be misinformation coming from the manual and the reps.Currently I am giving it a 3 star rating and will update as I do more testing. I might go back to ABS if PLA keeps giving me issues however I might do testing with a second nozzle or extruder to avoid contaminating particles. When I had the original jam with PLA I noticed little specs of ABS which I think was the culprit to begin with.The noise level is not that bad except from time to time the auto feeder & feeding tube seem to be doing some popping noise. I haven't determined if it is the auto-feeder scraping and bending the filament or the tube grabbing onto something else and flicking which causes the popping noise. For those that have purchased this check out the 3D Print Creator on youtube, he has lots of good videos and info. Thingiverse also has a good area of discussion regarding this printer.I also printed a third party filament holder from thingiverse which as been great. This printer does not come with one so make sure you print the holder first. Save your money and buy third party, you get less with the XYZPrinting replacement filaments.I have much more testing to go through and will update as I go along. Hope this review helps in some way.