I replayed the game in co-op this time. Last time I played it was around release.
A very good hard game which can get frustrating at times, but the game is mostly fair and skill based. Playing it in co-op is harder than playing it alone, so keep that in mind.

My thoughts:
(+ = (mostly) positive; - = (mostly) negative)
+ Gameplay;
Solid gameplay and enough variation to keep you focused and asking for more.

++ Music;
Live orchestra music extremely fitting the game. It's sadly not really music to listen to in your free time.

++ Graphics;
Perfection. The fact that this is handdrawn and scanned by only a few people is amazing.

+ Story/Characters;
Story nothing special. But the game isn't story focused to begin with. I like all the designs of the characters, very creative and unique.

Recommend?
Yes for sure. But be ready to test your friendship/relationship when playing co-op!