Got a giant blob of death when printing PETG on my printer. After heating it up and carefully removing what I could, the process had ruined the thermistor, heater cartridge, and got into the threads of the heater block and ruined some PETG printed parts. I opted to buy this complete setup rather than trying to salvage what I had, and save the working parts for the next catastrophe. My printer is working great again and haven't noticed a difference in quality.