I was fortunate enough to receive Mario Kart Seven yesterday. Don't have much time to talk, but what I will say is that I think the track design is excellent. Juxtaposed with the retro tracks, you realise that the new courses have many more split paths and shortcuts (although I'm not convinced that some of these secluded routes are actually quicker). Not to put down the retro cups, which are nicely put together. It's great that Retro Studios took the liberty to change a few things for the better - I swear the Bullet Bills in DS Airship Fortress move way faster than in MKDS.
Also played a smattering of online races. Coincidentally, as I jumped into a random Worldwide lobby, it just so happened that the one and only Greg Leahy was already there. I reckon I fared decently, always finishing in the top 3. Greg was the dominant competitor, though from the ratings, he had clearly put in a lot more time than everyone else in the party. Good fun, it was.