Same thing happened to me, at lvl 27 I got bored on my Sith Assassin until I respecced. Leveled him 5 more levels and decided, this character wasn't for me. I've played a rogue-ish style all of WoW. I think its time for something new, and while this is certainly new and not total copy of a Rogue its just too familiar while also completely different. So I played my Republic Jedi Sage for a while and am loving him at lvl 25 and my new Sith Warrior that I just started. So all it takes is a respeccing or maybe a different character and it can be improved by alot. The Sith Inquisitor story was good until I had to get ghost power which was a little farfetch'd for my tastes. I liked the fact my master was stuck in Khem'Val though, those sections of dialogue were hilarious.