I just stuck it on, it's only 1/2 held on with tape now though, because it saved part of my bumper from a tire tread that the car in front of me kicked up and into the front of my car, it smacked plate and broke the seal of the tape on 1/2 of it but the other half is still holding for now. I don't think it would be very difficult to remove if I wanted to. Pretty sure some dental floss and I could remove it in 5-10 minutes, might even be easier than those bolt on solutions.
I think it's ugly but it did take the brunt of the tire tread, and I don't like giving cops a reason to pull me over. Having tint is bad enough.