I saw it yesterday. Definately a film to see if you have money to spare, under these conditions:

1. You can see it in a cinema.
2. (Once it is released on DVD) You have your own projector or private cinema.

If you see it in the cinema and again after it's release at home, I gurantee you the film will lose most of it's original finesse and quality. The plot was simple (not complaining however) but the action was really great.
Oh, and kinda gorey.
However the characters seemed incredibly shallow. You didn't get enough time to get attached to them AT ALL.

Ah well... I'll be seeing TMNT next week which will make up for it!!