I can tell you I have had Llumar Tint on my last few cars and never had a problem with the tint.
I just had my 13 tinted at a new (to me) shop and they did a crap job lots of dust/lint under the tint in the quarters and rear window. It will be going back for a redo soon.
Oh and if you roll down the windows while it is still "wet" the tint can wrinkle up.
What kind of tint is it? Ceramic? Carbon? Metallic?