I really liked Inception, though parts of it seemed somewhat rushed and half-baked. The third act, if I'm honest, was pretty sloppy, and that was the only point where the film seemed like it was dragging a little. (I'm talking the whole Snow Fort into Limbo bit here; for instance, how the hell did Cobb suddenly end up washed up on the beach in Saito's Limbo? Why did Saito age but Cobb didn't? And, as a matter of fact, it was never clarified whether there was one Limbo or multiple Limbos for each individual - Saito seemed to fall into his own Limbo, where as Fischer fell into Cobb's...)
I also felt no attachment to the characters; very hollow and one-dimensional, though I guess a rich character-driven piece wasn't exactly what Nolan was going for. All in all a good effort, but not a great film, and certainly not a masterpiece. For me Nolan is yet to match the heights achieved with Memento. Good to see some more imagination in Hollywood though. Oh and the final shot was brilliant.