worn kayano for 10 yrs now, wanted to try something different.  Tried on the cushiest muzuno, and saucony at a running store, and tried on a pair of the 19 kayano just out of curiosity.  The kayano blew the others out of the water.  So I haven't strayed from asics yet... I've had these for about 2 months now, the bright turquoise with flash of pink and neon yellow. Love love love the look!  Feels like butter to run on! I've run between 5-8 miles on them 5 days a week and didn't need to break them in.  I have horrible plantar facilities for the last year, and these make it bearable to run. In fact, they feel so good, i look forward to running just so I can wear them! I did like the asymmetrical lace from the older models though (as they seem more anatomical, as tongue and lace always goes off the side for me anyways).  I don't know why they did away with them. Anyhow, these are super comfortable. I may need to acquire a backup pair.  Though i found them for cheaper at road runner. com with membership discount.