I'm slowely moving over to PETG for a number of prints since I figured out the best way for me to print it. My Grey and Purple were 2 pof the only 3 I have in PETG so far. Greyt was Amazon Basics and the Purple came from MakeShaper.
My Ender 5 is modified to direct drive with a special Apollo nozzle so your settings may be different. It was done 0.1500 layer height, 30% infill and 45mm/s. Heat was 250/70ºc.