I really want to give these shoes five stars, but I just can't. They are great to run relatively fast in (10k--48 minutes give or take) but are not great on steep downhills. (The shoes' grip is great, but I find my feet slipping to the front on steep descents).
They are super comfy and I love the 30-day trial period--that's great customer services.
On the downside, I hate the lacing system--I just couldn't get it to work for me. Once I'd "laced" them up, I couldn't undo the knot which made adjusting the fit impossible. On the plus side, they provide traditional laces in the box.
All in all great shoes, that are so nearly super great!