Its reviewing badly on Rotten Tomatoes; io9 are basically saying its the death of cinema!
I'm not entirely sure what some of the reviewers were expecting, going by the trailers high art it is not; more likely an entertaining brain-mode-off popcorn flick, although maybe it's one of those films with a really cool trailer that ends up being pap.
I'm off to to the cinema on Friday nonetheless, it's not summer without films like this and i'm looking forward to it all the same
All hail the giant gatling gun wielding samurai overlords.