I was looking for something to help me track my progress and this thing does it!  I recently just decided to start exercising again.  I love the way it tells you when you are half way done and keeps track of your workouts. 

I have really enjoyed the training programs that are on the Nike site.  It has really helped me stay motivated.

If you don't want to buy new Nike's just buy the pouch on Amazon, it works wonderfully. 

I have recommended this to several people already!