Just finished it, and to anyone considering the game. Yes, it is worth the playthrough. It's infinitely better than the first one and probably one of the best single player games I've played since probably MGS4.
i wasnt going to play it but if u say its really good i might as well try it. i played the first one but didnt like the fighting system so i gave up xD.
the fighting in the first one was awesome! you could stab them in the skull with the dagger! it gets stuck too im in the middle of moving out currently, so when i get established, i'm going to get it.