Now I'm a novice runner so I am far, far from an expert on the subject, but I love these shoes so far. Why?

1. Super comfortable. Perfectly fit my feet. Tight, but not enough to cut off circulation. I followed the advice of others though and bought one size larger than I normally do (11 vs. 10.5)
2. Very light. They feel like they weigh nothing.
3. Easy to slip on and off. I wish I had this kind of shoe when I lived in Asia, it would have made life so much easier.
4. They're fun to run in. I don't know how, but when I run in these shoes, my feet feel GOOD and if it weren't for my poor lungs, I wouldn't ever stop running.

Overall I am very happy with purchasing these shoes.