As someone who isn't THAT big of a hack-and-slash fan, I still found that Bayonetta 1 + 2 (especially 2 in my opinion) were amazing. The plots are definitely wacky and kind of messy, but it's still humorous and really is a fun ride. The combos are super refined and there's a crazy number of combinations you can use.
So yeah. If you want, get Bayo. You won't be disappointed (I mean, at least I don't think so).