I can't believe I waited so long to get a PEI print surface! I've been printing for 4 years now on the same Ender 3 V2 glass bed. I was never able to get anything to stick to the textured side of the glass, but the smooth side worked fine with a little glue. But it was a pain always having to clean off the residue after each print.
Yesterday, I installed a PEI plate, leveled it (after resetting the Z limit switch), wiped it down with 99% IPA, and hit print. Perfect adhesion. When the print was done, and the plate cooled, it popped off before I even removed it from the printer! What have I been doing with my life?!