I purchased these running shoes based solely on their looks, knowing NOT what to expect. The size I ordered were in sync with my other running shoes; however, when they were delivered, the fit was .5 larger and slightly heavier than any of my other running shoes. (Probably due to the plethora of plastic that makes up the blades on the bottom half of the running shoe) Needless to say, I had to re-order the running shoe .5 smaller. (Due to the fact I wanted to break-in the running shoes prior to my 1/2 marathon in Va Beach, RoadRunner were on point with getting the replacement shoes out to me lickity split [next day] without having to pay for another order. Kudos RoadRunner!) Any who.., once I received the replacement running shoes, I went running on a local school track, this after a light rain. Of note was.., while the sneakers felt heavy on my feet initailly, after running roughly two miles I didn't notice the weigh down. Also, a couple of times when I planted my foot on a number or lane divide on the school track, my foot slipped. With that being said, I did run the 1/2 marathon in them. They were comfortable, springy, supportive and my feet felt fine afterwards. For me, these sneakers are fair to middling and slightly over priced. After running the 1/2 marathon, I noticed some sole deterioration on the outer heel of both shoes which indicate they would not last long for any athlete that put high miles on their running shoes. Also, the sneakers are narrow and don't offer much in the toe box area. (The material is flexible.., if that says much.) Although my foot slipped on a slightly wet school track, I was somewhat apprehensive running through several water hoses at the VA Beach marathon.., but had no choice due to the humidity and heat. (My feet did not slip, but then again, I was running on strictly hot asphalt) As far as the inserts are concerned, I replaced them with my own. Interesting though, when you remove the inserts that come with the sneakers.., there's nothing underneath but the clear plastic that provides you with a bird's eye view of the top portion of the blades underneath the sneakers. At the present, I'm not sure if keeping these running shoes would benefit me in the long run, but then again, I have alittle more than two months to put them through the wringer. Maybe like fine wine, these shoes will get better with time.