The story was decent but it had way too many plot holes in it. Especially certain episodes where there were some new details introduced into the story, but it never really made clear how those details affected the story or it simply dropped it there. The animation during the fights wasn't the greatest but I personally didn't mind it, though it may bother some people, which is completely understandable. The characters were probably the only thing I liked, not necessarily because of their personality and all, but because of the idea of them being named after the guns they used, which is pretty cool and their definite waifu material as well.
I haven't read the manga or played the game so I can't make a comparison to the anime, but I feel like they weren't done justice with this anime adaptation. Although the Opening animation and Ending song are awesome. To conclude, this anime could've been better but it fell out to be pretty average.
