Considering Rockstar Games Presents Table Tennis game slightly above average is reasonable, but I personally would put it at slightly below. It is a well-polished game, it's relatively fun to play, but there are definitely some problems.
The highlight of the game is really the controls. I'm torn here. On the one hand, the controls that have been implemented work, and they work relatively well. On the other hand...there should have been a better, more in-depth control option. Why is it that the Wiimote is not directly equal to a ping pong paddle? Twisting my wrist, holding the paddle at a certain angle, etc. should have an affect on the spin of the ball. I like being able to use the nunchuk to move my character, OR to place the ball, but spin should NOT be handled by the d-pad. (Same issue applies to Tiger Woods Golf, in my opinion)
All in all, it's a fun game to pick up and play briefly, but it's short-lived, in my opinion. Online play for tournaments and such would have been welcomed.
They say controls make or break a game. While the controls that work do work, I feel that the further option is something that everyone would want, because that's what the Wiimote is made for--to make games more free, with less limitations. So let's see it happen.