I'll be honest I'm not an avid runner, but after only having these shoes for about a week I ran a 5k in them and love them.  They have very supportive soles and I think they are very comfortable.  They are a little on the heavier side as far as running shoes go.  But they are great.  I also have to say I do like the options as far as design and colors go, but that's the girl in me talking ;-) I would deffinately reccomend these shoes, maybe not for the marathon runner but for average training with the occasional 5-10k these work great!