I had contemplated getting this, but unfortunately I'm waist deep in Modern Warfare 3 at the minute; The way games are made these days there's only just enough room in a person's free time to fully commit to one game at a time. I may indulge myself after Christmas (assuming I can finish Batman: Arkham City, Uncharted 3 and Zelda: Skyward Sword rather quickly. Roll on my next lot of Ren Leave!)
Yep, its like WoW in the same way that small fluffy bunny rabbits are like Pterodactyls!
I 'acquired' this last night and will be giving it a go tonight. Loved its predecessors but it appears to be getting a slating in some areas looking at some reviews. Its current flavour is also a console port (as far as I know) so looses some points there.