I'm actually surprised how much I liked these after purchasing. I did buy them off Amazon Warehouse and they were "used" for $30 but it's probably one of my favorite shoes to wear. I'm not very intelligent in the realm of running shoes, I used to wear basketball shoes to the gym and use them on the treadmill. I probably won't be doing that anymore. I also really enjoy how these kind of stick out when I'm walking in my sweatpants, makes me feel a bit more legit that a pair of Jordan's or something at the gym.Comfortable, but these things kind of suck when it comes to running around on cement. I do get knee pains from long runs on cement, but that's more of my fault that the shoes. I did run 3 miles without feeling too winded on the treadmill, one of my big things is how my calves, ankles, feet and knee hold up when I run long distances and doing sprinting intervals on the treadmill. I can honestly say I'm very glad I bought these, I had a thought of regret when I frist bought them like, these things are pretty hideous but hey, $30 whatever.Since I got a good deal, I guess I'm slightly biased cause I wouldn't buy them for $40-$50 but that's a personal thing. Great product!