I'm 6'1, 200 pounds, slightly underpronate, average 40 to 50 miles per week. I have these running shoes for 4 months and I'm very happy with them. I rotate it with a BROOKS GLYCERIN 8, doing my marathon program.

I think the cushioning is awesome, doesn't matter the distance I run. I could run a 20 mile and I don't have any issues with my joins. My feet are confortable inside, although it has a little narrow toe box (I had some blisters, so my next shoe will be 4E) and my heels feel a little loose. I corrected that using a lacing pattern that I learned over RUNNER'S WORLD web page. It was well worth it.

Its responsiveness is not so perfect - and I prefer the Glycerin on that - but if I have to run a half marathon or a marathon, the Nimbus is the one I would use. I used to have NImbus 11, but this version is better in all aspects.

For a big guy like me, the cushioning is very important, specially during long runs, so I think these shoes are excellent. I'm planning to buy them again, since the price had reduced; ASICS is releasing the new NIMBUS 13 next month, with a weight reduction, but the 12 version is still good enough.