I love these shoes.  I wanted something colorful, light, yet supportive and they fit the bill.  I have poor circulation in my feet, so I need a shoe that has really good ventilation (my foot don't cool so well on their own).  These shoes work quite nicely.  I don't run often, so I haven't put them to the test that way yet - but I've used them on the elliptical, walking, and just puttering around doing housework, and they stayed very comfortable the whole time.  I think they perform as well as most high-end athletic shoes.  I only have one very small complaint, and that's that the tongue of the shoe has to be smoothed out well before I put my foot in - it has a tendency to curl under at the sides, so if I just shove my foot in without smoothing it first, the tongue doesn't lay flat.  But I think it's only a small inconvenience, and is likely to resolve the more I wear the shoe.  I think they're a really good value.