Im using perfboard, this here: (not the flex stick on stuff, but the bare metal perfboard)
Its very easy to adjust the bottom layer adherence with the nozzle height.
Configure correctly, parts hold very secure during print, but they pop off very easy.
Small items, I can take off by hand. Medium items, a little help with a knife.
Larger items, take the board out and bend it.
Very happy with this print surface, using this for a few years now.
So happy though that I have very little to compare it to