If you have not already, I would recommend watching the video review on this page. It's currently ranked as the most helpful and it definitely steered me towards buying these shoes. Anyways, my experience with these shoes agrees with the consensus. The day after they arrived in the mail, I took them out for a 5 mile run and they performed splendidly.  I mostly run on the balls of my feet and I felt that these shoes complemented my form very well. Some reviewers say that running with these shoes is like running on air (or clouds) - I wouldn't go that far. The soles do absorb some amount of shock but you still feel a hard impact when you land on pavement. I think this is a good thing. My worst running experiences have been with shoes that provide too much cushion; they make you land "softer", but they can sometimes encourage an unnatural running form which may lead to injuries. Anyways, after my first run with these shoes, I was able to shave 30 secs/mile off my usual pace; I'm not sure if that's entirely due to the shoes, but they definitely helped.

Other comments:
-I bought a pair of size 11 M and they fit as expected.
-If you lace your shoes in criss-cross fashion through every hole, you may not have enough lace left over to tie a neat bow. The video reviewer showed a neat trick to get around this. I just skipped a couple holes.

We'll have to see how these shoes hold up, but so far so good.