Really not that bad.

A lot of people have been complaining that this movie (and Part 2) really sucked. Truthfully, they were pretty good. While it's true they weren't as good as the anime/manga, nor did they meet my expectations, I still enjoyed them.

I think that's one of the biggest beefs people have with these movies. After a great anime/manga series, they set their expectations too high. When the movies didn't meet those expectations, and made several changes to the plot, they complained. But just because it didn't meet someone's expectations doesn't mean it was bad. Was I disappointed that it wasn't as good as I hoped it would be, of course, but that doesn't mean I didn't like it. These were good movies (though Part 2 wasn't as good as Part 1), even with the changes made to the plot.

If you wanted to see it, but changed your mind just because so many people have said it was bad, I say you should give it a chance. Don't go in expecting a masterpiece like the anime, but go in as if you would any other movie you only know about from the trailers.