"Maybe I got a bad pair? The react foam was hard as a rock. Very uncomfortable. Very disappointed. Loved last version but these are horrible." via Nike
"The first version is way better, because the second version is way heavier and the tongue just ripped off from my shoe. I'll stick with react miler or the first version of these." via Nike
"I have loved Nike's react foam for years now. It's very responsive and durable without being too hard on my knees. I had the previous version of this shoe and while the sole was great and carried me for over 500 miles, the upper gave me rubbing issues around my ankle. This new version leaves the best part of the shoe alone (the sole), and vastly improves the upper for more comfort and stability. Perfect for the city runner looking to log lots of miles" via Nike