I am perfectly happy with my Vapor 9s but of course I bought them knowing what to expect.
They are very lightweight and easy to move around in but at the cost of some durability and possibly even a little traction.
If you want a tank that lasts for more than a month (or two) then do your research and know what your buying companies make plenty of shoes like that (Barricade, Courtballistic, Rebel, T24).
Using Wilson 6.1 95s Kirsh Pro Line X 17 @55lbs. Why did I ever leave Wilson?? Gotta stop being cheap and trying to get racquets for $50!!!