I needed a multi pack of screen protectors because as you know -- Z flip screen protectors can get air pockets easily at the seam.
This protector worked really well for what I need. It was simple to apply, the adhesion was great right from the get go. The size fits the screen *perfectly* for the z flip 4 so getting it right can be a bit tricky (I ended up with some bubbled areas near the bottom from it being slightly off-center, bit was able to squeeze them out and tuck the edge into the phone frame).
Overall they're awesome for what we need them for.