During the.... 12-or-so hours I spent PvPing, I'd seen a few well-played Assassins/Shadows doing quite well in PvP. But, to me, they seem to be more of a burst-damage class than a sustained-damage class. If they can get their opener from stealth, they can nuke someone pretty hard. Also, their Sprint ability (whatever it's called) seems incredibly OP for Huttball. They pop it, and suddenly the slowdown effect from carrying the ball is negated entirely, and they can speed across the map. It's silly.