Mediocre, not as strong as they are said to be anyway, ive given the rear one a small flat spot and the chrome has chipped a fair bit. the Xodus's are a fair bit stronger.
I should think you will be fine with them TBH, its only because im a hack and bail & do lots of drops to flat why they are that way, its fine for a front rim, though
Depends, im not so keen on the chrome any more as after a while, especially if it gets wet or you chip it (mines got loads of chips out of it) it soon deteriorate's and looks awful. Get black on black.
AS long as you keep it dry, salt free and don't damage the chrome in anyway you will be fine, though you do have to be very thorough about keeping it that way.