I'm 56 and have fine lines and wrinkles.. I used this at least daily for one month and saw no difference.

First of all, the look of the ball is very cool. Construction looks decent, but will have to wait and see till I destroy the ball in a matter of time. The ball is very different from the other indoor balls such as Tachikara, Wilson and past Mikasa versions in that you'll first notice the feel of the ball. It doesn't have much of a cushion unlike the other brands/balls...this is an advantage for hitters who know how to smack the ball. Unlike some other complaints about the heavy weight, I personally like it. Again the added weight gives the ball its speed when you hit the ball properly. The dimple design is also an advantage for people who know how to serve a floater or jump floater...it gives the ball amazing movement. What I'm really surprised about is how EASY it is to controll the ball on sets, especially back sets and shoots...I believe due to the new seem and dimple design. Overall this is a great quality ball and I recommend it to anyone who wants to improve their game.

The Flex is fairly good - IF you understand its limitations. And it has a lot of them. This is a 1.0 version, the first wrist-based tracker Fitbit has produced. There are good reasons why there are so many negative reviews of the Flex. I strongly suggest that you wait for the technology to be refined by Fitbit (and others) before spending $100 or more on this.