Its the old adage that ‘a good game does not necessarily a good port make’. The game itself is as it is on console versions, its just that PC gamers require an Internet connection every time they launch the title, the game itself suffers from a capped frame-rate, limited resolutions in window mode, no anti-aliasing and a whole host of exciting bugs and glitches. Ubisoft have not commented on when these issues will be resolved, if at all.
Thanks to Rock Paper Shotgun for the info.