Let me make this clear first - if you are looking for a really technical description of these shoes - this isn't it. This is my non-technical opinion. I won these shoes a few weeks ago when the Asics rep was at iRun. I ran in the demo shoes when the rep was visiting, but I hadn't been in them since. I really liked the shoes and was definitely interested in getting some more miles in them. I took them out for a 4 mile run earlier this week and loved them. I need a lot of room in the toe box because I have bunions and these shoes had plenty of room. No rubbing on the blister I had developed at Leona Divide. AWESOME! I like to be able to feel the road in my shoes. I do NOT want to feel like I am running on a pillow. Somehow these shoes managed to feel cushiony and let me feel the road. It's the prefect blend. I decided to give them a try on the trail yesterday. I like to have road shoes that I can wear on both road and trail because I am often on both surfaces during a run. The Aravaipa Group run was at the McDowell Sonoran Preserve. In case you don't know, this is a pretty rocky trail. The shoes were awesome. Of course with no rock plate, you get the occasional rock that hits your foot the wrong way, but I didn't notice anything terrible. They were plenty grippy and my feet were super comfortable. I am very excited about getting some more miles in these shoes. I would love to try the light weight trail shoes - hint hint people at Asics.