I think I've already voiced my opinion, but here it goes again.
I actually voiced a long post
here.
That doesn't mean it isn't fun, it just isn't much of an RPG. It is like an RPG for the 'short attention span - don't worry, be happy' crowd. Short attention span in that you can check in for 15 minutes, do a few little nothing tasks and leave. Don't Worry, Be Happy because you don't have to worry about battles (everything scales so you're never really outmatched), don't worry about choices (nothing matters, you can be good and evil at once, take on every class and so on), and not worry about missing stuff (everything you find is scaled so you'll never miss anything good by not exploring).