As my driver's side window had a squealing noice and also some times, the window won't go down if the car drives for 1 hour in hot weather. Initially mobile service, cleaned the window and said that is the fix. Later I had the same issue and this time, I went to the service center. They fixed the issue, but created few more issues. They scratched the window tint and asked me to get it tinted and they can reimburse the money. the inside plastic near the door knob is hanging and they didn't seal that now. Also, the carpet clip was removed and didn't put that back again. They forgot a big screwdriver in child seat and I am glad I saw that before I place my child there. These might be small issues, but not sure why they tested only unit testing and forgot to fix the rest the of the things they opened.