I Really like my Mercenary, the class is loads of fun to play.
I like the 3 instances I've run so far, I like making choices and rolling on the answer chosen even though its always dark (cuz we're sith), I like that the crew skills interact with the instances, I like the story architecture of the instances rather than just go in and kill stuff.
I know a lot of people will disagree with me, but I like the space combat, it's incredibly simplistic, but its fun in it's simplicity. Gives me something to do while I'm craft spamming.
I like that I don't feel like I'm grinding.
I love huttball.
I like my companions.
I like the class storyline.
Theres a lot more I like but I don't want to type forever.