I really wanted to say this game is very good, but compared to the first one, it is a huge downgrade.
Hotline Miami was a tactical game, you had to plan your actions through trial and error in order to get the perfect run, while Hotline Miami 2 requires you to rely purely on reflex.
I may pick up this game sometime in the future for completion sake, but I can't say I had a lot of fun with it compared to Hotline Miami