I am not an avid runner, and these are my first "real" running shoes, but for what I can tell they seem to be a very good product.  They are much better than the generic "gym shoes" that I had previously.  They are very light weight, and the sole has nice padding and flexibility.  They also have no rough spots on the inside that rub against my feet when I run.  I did run in the rain, and they dried out very quickly, which was nice.  Overall, good shoes!