I put one on a MIM Strat that I had for a while. I preferred it to the 6 screw vintage style bridge, but the action on it was a bit stiffer. I don't know that it offers much of an upgrade if you have an american deluxe bridge (2-post, push in arm), but if I ever pick up something with a vintage bridge I wouldn't hesitate to put a super-vee in it
Agree with Reza completely; the range with be on par with a vintage style trem, maybe a bit more, but the action is much more like a floyd, and tuning stability with even some kluson tuners and a well cut but is excellent.
Eric Johnson was using a Super Vee trem in one of his signature strats on a Jimi Hendrix tour a while back. He said he was really digging it, and we all know how he is with gear!