I would only buy tires at this place, very much cheaper than in Geneva.
But for any work (ie brakes) not recommended as they can't keep appointments and the work is not up to standard, meaning it will only cost you a lot more in the end with lots of hassles.

Never go here. They are complete cowboys. They have now screwed up on two vehicles of mine (sadly I didn't find out about the first until after the second broke).
In one case this lead to a wheel falling off my girlfriend's car while driving on the motorway, after we had the tyres changed there.
Apparently, other Feu Vert garages have better standards. This review applies to the one in Ferney Voltaire.