I actually liked the first part of this quite a lot. Characters were developed, story was set up, really creepy looking ghoulish giants as the opponents. If it weren't for the over the top Japanese acting, it would have been quite cool.
Unfortunately, the second part of the story - this film - is not as good as the first. It turns a humanity survival thing into a sort of Resident Evil, just as ridiculously acted and with reveals that inhibit rather than use the potential created with the first movie.
I have not watched the anime or read the manga. I know people are upset about the film not following the plot there. I have been just as outraged when films destroyed by image of a thing I love. However, you need to also consider this series of the movies as a stand alone story, maybe a reboot, who knows. The first part was very good at that, the second just obliterated that option.
Bottom line: first part worth watching, second part not so much, but it would make no sense to not see it after going through the first film. Overall, a bit of a failure.
