I finished the game a couple days ago and I'm just clearing some of the extra stuff like secret verses and those muselpheim challenges, but I can see myself playing through the entire game again next week! I absolutely love this game, which kinda surprised me because I didn't enjoy Bayo 1 all that much.
There's something about this game that I can't quite put my finger on that makes the combat a million times better than the original. The most noticeable thing is that it feels much faster and more satisfying, but there's definitely more to it than that.
Beyond the nomal combat, the level-design and visuals are vastly superior, there's better weapon variety, there's no shitty QTE's, the bosses are a lot more fun(especially the final boss!), the story isn't quite as terrible and confusing. There's even more awesome crap in the game that I could go on about, but I'll leave it at that.
I'd say the only negative thing about the game is Loki, who is just the fucking worst. The kid characters in W101 and Bayo1 were annoying, but this is taking things too far!