If you're a Dragon Ball fan you'll absolutely LOVE this game. Plenty of fun and replay value.
It's one of those games you can carry around and play it 5 minutes just to kill some time while waiting in line or something. Yeah it's pretty easy to beat but I really don't mind, with all the bad games and movies being made about Dragon Ball these days, I'm really thankful this is a good game.
I'd also recommend the game for non-hardcore gamers because the controls are really easy to learn and the game encourages you to go on.
It's also full of surprises for fans, like being able to play as Krillin, Gohan, Piccolo, Chaos, Ten Shin Han, Tao Pai Pai, Yamcha, etc (even the freakin' little enemy cameras that shoot at you). They all have special moves, and those little details are what make this game worth the try.