I haven't played this game for a long time, but I do recall being a really good puzzle game, makes me want to clean my room, or more so pack up and unpack.

DEMO Version
I'm not sure if due to not listening to Hatsune Miku that I don't really like her voice or due to knowing that it's just technical voice, but I don't like it.
Another thing to add is the way the placements of the inputs are horrible, it could be going around clockwise, however, with the background being brighter than the timed buttons, I probably won't like this game.

Only played the demo and I can see why people like this game; the music, the style, and the concept of the game.
I will say the controls are questionable, but they are really unique with a game like this.