I was a bit sceptical to change brands at first as I have been a dedicated asics fan for many years and swore I would never wear another brand. Being a severe pronator and still seeming to find the right shoe to lessen my problems, I thought I would try these ( my husband has the mens version and swears by them)for a complete change. Put them on tonight for their first test run, expecting to feel mabe a slight run here and there, but nothing, it was like wearing springs on your feet, but with amazing grip and cushioning too. The width on the bottom of the shoe helped to level out my pronation problem, without feeling restrictive. I enjoyed everyone of those hilly 6 miles!! They are light and fast too and I would definatly reccomend them to people who suffer from pronation probs like me!! Excellent shoe, Im hooked now!!