I haven’t tried my hand yet with PETG but would like to at some point. I’m comfortable with PLA and my machine, so always weary of going from a known good state to an unknown state. I know there is some bed adhesion issues - the opposite to the normal realm with PLA in that PETG can actually fuse itself to the bed.
I’m comfortable with my printer, at this point, that I don’t need to apply anything to my bed for successful prints - no glue, no hairspray. I like having a single consumable (filament). From what I understand with PETG, I’ll need to introduce a tape/glue strategy to keep my bed alive.