Nintendo has made a game that will leave you brawling for centuries.
Ok First Off Is the graphics. I wouldn't say they're the best or the worst but they are a little bit underwhelming compared to Nintendo's other games. The game runs alright, I mean loading times vary in length but that's nothing.
Gameplay is what makes this game "The Game To Have". All controls work great and all are easy to use. You can find yourself using one control scheme and then using another one and you'll feel just right, that's how comfortable the controls are. The game is also filled with numerous modes that you'll enjoy. Online definitely needed improvement, it runs horribly about 85% of the time, chances are you'll find yourself playing more local multiplayer then online.
Sound, The music is outstanding. There are like billions of tunes from past Nintendo games, but to make it sound better, they're the BEST tunes in past Nintendo games.
The game will obviously last you a long time, as stated in the beginning. The subspace will occupy maybe 10-15 hours while the rest is upto you and who you play with, which should be many many many hours.
So in conclusion I say that you should buy this game no matter what, if you don't then.....well.......I don't think your the smartest of people...lol.