The story was definitely the highlight, it nicely solved the problems that the original bioshock had with the pacing of it's story. The gunplay wasn't amazing, and some of the miniboss characters were just poorly designed (I'm looking at you Handymen!). I also noticed a ton of z-fighting on some of the games horizontal surfaces, which is always unfortunate. The sky rails were cool, but besides for mobillity I never used them for combat as much as the game wanted me to. Elizabeth was really well done, especially the mid-combat resources throw, aside from a few buggy instances. The lore of the game wasn't as seamless as the original bioshock, but that's mostly due to the infeasibillity of a flying city (quantum particles what?). It's a mixed bag as with most games, but it certainly was memorable in a good way.