I think a Scoundrel is one of the "harder" classes to play and master in swtor. It has a ton of abilities (more then can fit on your hotbars) and some are positional or from stealth only. I don't reccomend the class to new players of mmos.
Dont get me wrong. I love the class, Im no pro, but i think a lot of people play some thing like a Sage, for example, and expect the oter classes to play as easily.
Also...the game is young classes will get nerfed and buffed. Play what you think is "fun". From someone who has played mmo's for 10 years, thats the best advice i can give.
Just do whats fun.