My son loves these shoes, and since the wheels are easier to get in and out than on older models he wears them more often.  He walks/heelies to school, then puts the wheels in his backpack.  He used to have to tip toe around all day with the wheels in, but not with these.

Lots of fun and good exercise.  Luckily he has never fallen and hit his head. He has been using Heelies for about 3 years.