Had the rear brakes done on my 2013 Infiniti G37. Took two hours from start to finish and it turned out that one of the rotors was not correctly trued. Step on the brakes and the whole car vibrated like James Brown's knees. Of course, it was then 5:15, so I had to go back the next day, a thirty mile round trip, plus another hour and a half to get it straightened out. They got it fixed, but that's 60 miles of driving and 3 1/2 hours just to get rear discs done.