Ive used it, and Ive takenit off. I had excellent results.  Like mentioned, don't be cheap, and get an exact knife and have a hair dryer.  If you do, it makes it so much easier.  When you want it off, heat it back up, and peel it off.  It leaves no residue whatsoever.  I tested some leftover on a trail cam and it stayed in the woods a couple months.  Stuff was still doing strong. Tried to take it off, heated it up, and it came right off.  
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