At what?
I play stamplar and like it. In PvE it is supposed to not be in a good spot as with most stamina classes. In PvP I do know I prefer the faster playstyle than its magicka counterpart but I might be able to do everything better as any of the other 3 classes in stamina.
All I can tell you is the one thing Stamplar has over the other classes. A cheap purge and healing boost. Beyond that; the other classes have better CC, better sustain, better damage, better escapes (outside of DK who is about the same). That purge though. It is a big deal IMO.