The only problem with this one is that it's basically impossible to get most of the cherries and gems, since you cannot control the ball yourself. You basically have to rely on pure luck to get them, and that's not much fun. I also think it would be a lot easier if you could stop the paddle simply by releasing the button.
Maybe you could move the ball up/down yourself and the paddles moved up/down by the computer, so that way you could choose whether to go for that gem, or to go for the paddle and survive. I think that could be a lot more interenting.