It's possibly the best game of the decade, and that's not hyperbole. The problem is that it had a buggy release (now fixed), that the story seems nonsensical on the first and maybe second playthrough, and worst of all that the gameplay seems bad until you git gud. The difficulty increase from the first game combined with the windows and larger levels means that everyone falls into the trap of playing it like a tacticool shooter at first, like doorkickers or something and it's awful to play like that. Once you get passed that and learn to play it like Hotline Miami is when it suddenly becomes good.How is it compared to 1? 1 was great. If you were using mouse+keyboard, that was probably your issue.
Also m+k/b is infinitely better than thumbsticks, especially on hard where you don't have lock-on.