Pros: Ton of Fun, Awesome Play Control, Great Competition
Cons: Computer Rubberbanding, No COOP Grand Prix
This game is fun. The online play makes every race intelligent and challenging. While the traditional single player is a great challenge it's extremely difficult because the computers cheat. Of course they've always cheated since the original Mario Kart, but this time they cheat even worse.
Now the online play is what makes this game great. You can always get anywhere from 7 to 11 competitors at any time of the day or night. These people are tough, but it's always a blast ramming and slamming them as you race for the finish. Its so much more real when you get those pesky computers off thet track. You ram them and they feel it in their hands, it doesn't get better than that.
The way the online play is set up is very slick. Nintendo picks players from either your country or around the world. They introduce them to you as a Mii waving in their locality on the globe. Sometimes you might race the same people 10 times in a row so you've got that opportunity to make it personal.
Suppose somebody knocked you off the track a split second before you finished in 1st causing you to finish in 6th. Maybe 2 or 3 races later you can return the favor!
And if you think it might be too difficult you'll always have a beginner banging into the walls in 12th place. Nintendo is very smart about pinning you up with a good mix of skill levels. Each player starts with 5000 points and you either gain or lose points depending on your performance over all time. Sometimes you'll be matched with 4200 point players and other times you might see an 8000, but its generally a good mix.
The play control is superb even with the motion sensitive controls. They've done an amazing job with the sensitivity and overall fun factor. You can use the steering wheel or not, and I prefer a bare remote. It just takes so much less energy to shake and steer.
I just love this game and can easily see myself sitting down for quick online sessions several years from now.