My eight-year-old got these for Christmas and still really loves them! She has so much fun at Costco and other big stores with smooth floors where she can hold onto my cart or my hand and glide along beside me.
There is a slight learning curve, and the first couple of days she fell down a few times and got discouraged, but we kept encouraging her and she learned quickly. It was a great gift for her because she needed new shoes, loves shiny things and is motivated by fun.
The wheels can also be removed, the shoes include plugs to make them regular shoes, but we've not really felt the need to try this feature yet.