I had a shop install TPMS from CDC, i dont know how they did it but it didn't sync up to my car,kept getting pressure monitor fault. I Had to take it back to them twice. Only started working when I had them do the tire training procedure. They used their own learning tool. Remotesremotes site...
Mine is laggy most of the time but I thinks its always been this way. It takes time when you want to perform an action in it. On a rare ocasion it will go crazy and pretty much stops working until you shut it down and reboot. I do use a custom rom and Waze on start up. Can get frustrating but...
The plastic pieces of the unit on both sides cover the edges of the screen so you can't tell where it ends, the screen protector probably fits the screen perfectly.
It looks dark initially but once you remove all the filters on it ,it looks normal.
Good protector if u can install it right