I run 3 to 6 miles a couple of times a week and I ran about 15 miles in these shoes. I used to run in Brooks Ghost 6's, which have a fairly firm foot bed. These Asics didn't seem that soft when I tried them on at the store, but it feels like the gel gets softer as it warms up. By the time I was done with a run, my feet felt like they were sinking into the foot bed or wrapped in hot pillows. On top of that, the shoes don't breath very well, so your feet will heat up, and they're fairly heavy.