For the most part, these shoes are awesome.  My 4-year old son wears a toddler sized 8.  The colors are vibrate, the light is nice and bold.  The downside is the Velcro strip that tightens the shoe is a bit short.  While every other part of the shoe fits, the only thing that I have to really tighten down and risk discomforting my son's feet is the Velcro attachment.