I'm not sure about the negative reviews, or what some of these folks where running on. I own two pairs of these shoes. I've run over 100 road miles on them, and have done 60+ miles worth of Tough Mudders in them. I always run with socks. My feet haven't been irritated, and the shoes haven't fallen apart. I can't find any flaws with this shoe, I picked them over the road version because they're lighter and "more minimalist." I haven't had any issues with this shoe. My 5K time dropped somewhat significantly my first time out on them. Having a few less ounces on your feet makes a big difference! Overall (assuming you're a barefoot style runner) I'd highly reccomend this shoe, it's been flawless for me.