I have these on my 3 year old and he loves them.  They are much better than Nike's or Reebok's which we have tried in the past.  These have a very flexible sole unlike the Nike's and Reebok's which are extremely stiff.  These shoes along with the other 2 brands I just mentioned are well built and durable, it is the flexible sole thing that is the huge difference.  We also tried Asics for my old son who is 5.  Those ran a little small and didn't last much longer than 3 months (toe area completely fell apart).  I wish we would have purchased these Saucony's instead.