I've got a set of ebay knock off ganadors and they are utter rubbish. Although it was advertised to suit the car, it still took custom work to get them fitted. The controls are reversed vertically, so down is up and up is down. Aside from that that, the mirrors themselves don't have enough adjustment to let me see out - passenger or driver side. At full right tilt all I can see is the back seat of the car through the rear side window. Also, whatever you do manage to see through them is appears magnified, the exact opposite from "objects in the mirrors are closer than they appear" warning you see on normal (convex) mirrors.
Highly un-recommended.