I enjoyed the film. It wasn't "rave about this and tell all your friends immediately" great, but it was worth seeing, and the last 20-30 minutes were really well done. The way that Hitler was portrayed was interesting, too. Rather than a rabidly ranting megalomaniac, he was this quiet little man, who seemed to be in a world of his own most of the time, although you got a sense of the monster underneath, too.
And as I've said, the supporting cast is packed to the brim with recognisable faces!