I've taken my previous 6 cars to Tint King and have referred about a dozen people to them over the past 10 years. They're great guys who don't compromise their quality. Their prices are competitive amongst the top tier shops around The Hub, but you get what you pay for here...lifetime warranty on film (top brands) and craftsmanship, fast service, and a nice environment (these guys aren't sketchy dudes in a busted garage). I've only ever had to return once for a redo, and that was for 1 window. They said to bring it in and replaced it without question. You can surely go cheaper but they won't use the best film nor back up their work.
As for the dot matrix, if you look at the edges (esp the top) of your rear window you'll see the dot matrix. Film doesn't bond to that too well, so installers use a use a specialized strip of film along with the main film over it.
I've had no issues with my tint and operating my windows.
Anyway, I just wanted to share my experience with them.
His: MY08 E92 335xi Dinan Stage 2
Hers: MY07 R56 Cooper S
BMW CCA ✓