My thoughts: "Relaxing fun." Some interesting storylines, some cool mechanics... enough to keep me busy for a while, but nothing that's really going to stick around for very long. One storyline managed to surprise me, positively. Otherwise, it earns its reputation as World Of Warcraft single-player, albeit better.
I really like the real-time dodge and block mechanics, which gives you a lot of control. Never seen anything similar in an RPG game as far as I can remember.
Short version: Not a fantastic game, but a fun and entertaining game for a while. A title you can safely pick up if you're not expecting anything huge, and get a few pleasant surprises.