I am currently in the process of printing my new 3d printer and have been using Real Filament PETG for all of the parts. I have used about one and a half spools of their Neutral PETG so far on the parts for the new printer and other things that needed the strength of PETG, and i have had no issues other than slight warping on larger, solid parts, which I managed to solve by using Kapton tape with a light coat of hairspray.