Not as good as the original. You can move blocks in mid air from left to right, that shouldn't be possible. Also combos can be achieved by a block hitting a fitting adjacent block in mid air, which also shouldn't be possible. The only thing it's got going for it is up to 4 players, while the original only allowed 2. That's a pretty big deal, though, so it's worth buying for that alone. But good luck finding 3 other players who like this kind of game.
Also, Happy Hitler blocks