Got mine a few days ago. I'm quite impressed with the game-- I normally like pinball games but for some reason this one just seemed kinda rushed, or like a "throw away" game... I passed up on it during a few BB clearances (for $17.99 I didn't think it was very clearance-priced). but jumped now for some reason (been on a DS kick) and it's a VERY good game. I'm quite happy with it, it's a good pinball game that uses the DS very well, and the rumble pack is pretty good. (it's not the strongest rumble but feels very much like pinball) Graphics look better in real life than any of the screen shots I saw, as well.
If you're on the fence, and like pinball games (or Metroid), definitely pick it up! Thanks OP!