I've put about 200 miles on my Road-X 255s and loved them. Great anatomical fit, breath-ability, and super light weight. Did not get 5 stars because of durability. The heel in my right shoe is completely warn through the padding. I've never had any blisters, and I've always liked the fit, but I think at about 250 miles I'll be turning these into a pair of lawn mowing shoes.