Fully understand something being "too good to be true." Good discussion.
I used the Flex Tape and cut out the letters and numbers (Xacto knife) for my PVC Zodiac dinghy
. Perfect. Tricky to pull off the slick paper and not get stuck to the glued side, but so far very happy.
Also used a small piece to repair a crack on a plastic refuse container. It does state that the tape is NOT designed to be pulled off or reset. Fine for my case, but beware. Likely what is left on my roll may become unusable in a few years.