I bought one and I'm thoroughly impressed. None of the other edge-adhesive glass screen protectors can even come close to comparing to the resulting quality of this one. It's as if I'm staring at the native S8 Plus' glass. I only wish the edges were smoother or tapered.
When I first installed it, I neglected to follow the specific instruction (or others' recommendation, I don't remember?) to let it cure a few hours. I immediately attempted to put a case on my device. The case I had started to lift the glass and tiny bubbles started to appear under it, ruining the look.
I immediately started panicking, pressing and massaging the glass down to hopefully get the bubbles to disappear. Didn't help as much as I hoped, so I initiated a return process with Amazon.
I contemplated ordering another one, but as soon as good reviews came in that evening from others who received it the same time, the stock immediately depleted within the same hour and another batch was set to arrive the first few days in May.
At 2AM, I was already too tired to remove it and pack it back up, so I slept on it, and when I woke up, the bubbles were gone. It looked like it healed itself. Cool. I went to AT&T and swapped out the CaseMate for a Tech21 which didn't interfere with the glass. Again, I tried to push my S8 Plus out of the CaseMate case to return it, and it started to bubble up again when the corner of the glass slightly lifted from phone. I immediately massaged the glass back down and the bubbles disappeared within the hour.
So, as it stands, it looks like the glass will be a keeper, and from my experience, it's a really strong but not permanent bond, meaning it will come off with enough strength, and the UV-hardened acrylic will come off with it, with any remaining residue probably coming off with alcohol as others stated.