I bought a pair of Gel Nimbus 14 last week to replace my Nimbus 13's. Alarm bells started to ring in the shop when they seemed to be very firm under foot, but because I loved the 13's so much I bought them (£120). After a weeks running (50 miles) I am in agony. It is like running in clogs. I Want to burn the things, but can't bring myself to do it after spending all that money so I will keep them as walking / weekend shoes.
I'm finished with Asics now. Going to try the the Kalenji KIPRUN LD neutral, I did have a pair of Kalenji's a few years back and they were ok, until I fell in love with the Nimbus 12 and 13.
Asics are really taking the p*ss with Nimbus 14, it really is awful.