Since this is a dancing game, you will doubtless be wanting to see some videos of the game in action:
As you will recall, the game is an adventure game in which the story is propelled by successful dancing; the actual dancing itself takes the form of correct controller manipulation in response to the on-screen cues, in a manner reminiscent of DDR.
There are also mini-games available…
All manner of songs, settings, characters and of course costumes are available through the course of play. Various additional modes are included, hopefully greatly enhancing replayability.
Sadly, the Wii does not lend itself to graphical splendour, but the graphics do look adequate. Involvement of the original seiyuu and similar ensures an experience close to that of the anime.
The DX pack comes with an exclusive Haruhi articulated figure (Fraulein), so this is likely the undisputed fan choice.
It looks set to sell vigorously.