It's true that the control isn't as "smooth" as the classics (I expected characters to "slide" more, lime in SMB1 which is still my favourite), but overall the game is fun.

It's really worth playing it casually with friends: when everybody dies (and causes everybody else to die for a number of reason) the game gets incredibly funny, instead of frustrating. Of course, if you're playing to finish the game, you'd better find a focused pro gamer or play alone, and that's where you get frustrated.