I played the demo a while back and it left a very solid impression. The music's great, the gameplay's a neat streamlined variation on usual rhythm game stuff, and it's just dripping with style across the board. I'd strongly recommend it just based on those first impressions alone.
The only thing I found that I just really did not like and thought was outright bad was the batting machine minigame from some sidequest, which felt like trying to parry in Dark Souls with how wonky and overly precise the timing to hit the poorly telegraphed shots was.