I am enjoying the hell out of this game, but I agree that Mario is a bit slower than in SMB3 and World. However, the physics of Mario games have always been changing, you just have to get used to it. (But I prefer the World physics).
Enjoying both singleplayer and multiplayer with my wife, but there is definitely some truth to this:
http://www.penny-arcade.com/2009/11/20/
And this:
http://www.penny-arcade.com/comic/2009/11/20/
After the first session, we had to set some ground rules or we would probably have killed eachother for real :)







