The actual story is very straightforward though, and not difficult to follow. It's all the time bending stuff which fucks with your mind - whether there is any actual depth to this or if it's just smoke and mirrors will probably reveal itself (or not) over several viewings.
Anyway, I loved it and it was great to be back in the cinema again. Whether you like Nolan or not, there aren't too many other directors doing this sort of thing for mainstream audiences. Not sure how people are saying the action sequences were poorly executed, the highway scene was fucking ace!