It's nothing at all like Puzzle Quest, that's all I need to say, really. You gain levels, but you have zero stats to work with. You get little pets that act as your special moves, but most of them just have you flip some of your opponents chips rather than unleash devastating game-breaking moves.
It has achievements that you can unlock, which give you some sort of code that you redeem on the neopets website, so I'm like ewwwwwwww