Power is great but if you hit a poor shot you get into trouble faster, taking the ball on the rise takes your opponents time away not allowing them to make a good court position and get balanced.
This is relevant to almost all shots and the quality of a player can be quickly judged by the time between the bounce and the hit for general rally play.
This is an amazing skill and one that needs to be trained, if you can take the ball on the rise and still use power and hit target you will be unstoppable.
