They are ridiculous. I don't even feel them. I just took a few-block trot as a test... and I've never had a better time running.
They're porous, well ventilated, and they have a satisfying smell of rubber.
Seriously, I used to hate running. Hate, hate, hate it. I have really feeble joints, and the impact on my joints and ligaments was torture in my old shoes and/or whenever I ran. I didn't even feel any impact when I was running... and maybe it's because I was more conscious of my strides but I'm actually eager to go running now. In fact, I think I'm gonna go take a run around the lake in this gorgeous spring weather.