I main a Scoundrel and I would say that Operatives/Scoundrels are fairly good. Really good burst, have low CD on their defensive abilities and a very fun unique class. 2.0 is buffing them a lot and make them more viable. I would definitely suggest you to gear up and start PvPing
they are definately better than for example mercs in a pvp enviroment... stealth/ high burst/ survivability. They were nerfed from one-hitting people with their opener rotation and in general, raids don't favor melee classes and compared to a marauder, doesn't have any group buffs. Beyond that... I'm thinking of changing my heal operative to a concealment spec.