For me the rear view is fine (not excellent, but fair enough, decent, not an issue).
The nagging thing is the wind shield/front view: The big mirror and rain sensor usually cover exactly the spot where the traffic light sits around here, so .. I look like a tool whenever I stand still. But that's minor, probably highly related to my position in the car and solved if you have decent (as in on the far side of the crossing) traffic lights..