Just a hands down great arcade rhythm experience. Only downside is that it is very hard to access outside of US/Asia/OCE.
Also because of how odd the cabinet design is, a "controller" alone is gonna set you back USD $1,399 with shipping fees from $441 to $999 depending on your location.
Of course, if you go with the home controller option, you're gonna have to get your hands on a not-so-legal dump of the game files and run in on your PC.

It's fun enough that I've had 2 separate trips to England and playing maimai was a major reason for going.