I tented my L3560 five years ago. Still looks new. Never use ammonia based cleaners and the tenting should last 10-20 years.
My cars get tinted as soon as I bring them home, if not before.
I've only had one time with tinting coming loose and that is just recently my cars windshield tint is separating. The car was tinted in 2014 and has spent it's life never covered in Central California, usually with the windshield being in direct sun.