My impressions:
Great display of 3D, doesn't strain the eyes unlike Ridge Racer.
The graphics are magnificent for such a console.
The FP mode worked very well and it's incredibly easy to swap back.
All tracks are magnificent, and the classic ones are finely polished.
The online mode for this game is more robust then expected.
All these aside, lacking missions from the handheld predecessor Mario Kart DS is a huge minus.
There are
very minor glitches, but I doubt anyone would notice.
Plus, are the opponents made tougher? I nearly missed my 1st a few times when playing 50cc. This happens only in 100cc in the older games.
Either way, this game deserves about 8 - 9/10. The online is beautiful, interface is brilliant and fully animated and the tracks are wonderfully done. The only major downside is the 'meh' single player mode.
That's all I guess. Sums it up.