I've had the Bestops for about 8 months and 20000 miles and still like them. I have 5 miles of wash-boarded gravel road to get home and you couldn't tell a chevy from a ford in them on that road because of the shake, but they work well on any decent road, a bit of shake on rough pavement but still usable. They definitely vibrate more than the factory mirrors. If you are short you may have a problem getting the passenger mirror in far enough, my wife is 5'8" and turns it fully in and still has to run the seat back a bit more than she likes. I'm 6'3" and run the seat all the way back and have plenty of travel to set the mirror where I need it. I thought the fit and finish was a little "cheaper" than the factory but still not to bad.
Jared