Dear GOD rent it first... Let me tell you why...
If you do not have every previous iteration of Street Fighter arranged in a shrine on your wall, don't get this game.
If you can't remember every combo for every character for one of the games from seven years ago, do NOT get this game.
Here's the thing... Super Street Fighter IV, it's not for novices. It's not even for casual players. Heck, it's not even for hardcore gamers who aren't fighting fanatics.
This game is merciless to its very core. Rarely have I ever seen combos so unforgiving in their execution, for instance. A simple sweep forward and square might take you multiple tries to pull off, and God help you if you're going for an actual combo move.
The windows for execution are incredibly small, and then there's the fact that there's tons to memorize. If this makes you excited, if you love that, you should have this game already.
Me... I'm a good gamer. Really, fighting, racing and rts are the only genres I don't buy tons of games in, and I've still played many of them. I played every Mortal Kombat, the old Street Fighter 2 games, Soul Caliber, and others.
This game, though, is for hardcore fighter lovers. I spent over a dozen hours practicing in training mode, in challenge mode which teaches you moves, and playing against my friend in versus. I then picked my best character, entered Arcade Mode against the CPU, set the difficulty on the lowest of I think seven settings, called "Easiest". I then lost against the first fighter.
That makes this difficult for me to review... I can tell it's a fun game, well polished, but accessible it is NOT. Nor is it intuitive. If you haven't spent the better part of your life playing Street Fighter, there's no way you can come into this game and have fun.
That's a warning to people like me who think the game looks cool and decide to give the popular Street Fighter franchise a go.
If you -do- get it, do NOT, under any circumstances, go online, because it's full of people who spend hours every day on this game, honing skills to far above those of anyone who plays more than this game.
The internet's full of people like me right now, complaining about the impossibility of getting into this, so I'm giving a warning, don't waste your money on this unless you -know- it's for you.
There's only so much joy in having an enemy brutally 42-hit-combo you into the ground while you frantically try to pull off one of the moves you just memorized.