While the game can play on the PS3, the PS2 dance pad (since it uses the regular PS2 controller port) does not work so you’re stuck with the controller to play which defeats the purpose of the game.
Overall, it seems as though the PS2 is on its last legs and this is one last way for Konami to cash in. The recent DDR game on the Nintendo Wii is a much better game – there’s more up-tempo songs, and you’re also moving your arms plus the difficulty level of the random arrows makes it much more of a challenge. (If you play the game with the Eye Toy, you can also use your hands, but it’s nowhere near the level of fun that you get with the Wii version.) If you absolutely need to increase your music set list, you should hope you can get this game used or in a bargain sale. As a full priced game, it’s very difficult to recommend.