I've been using them all day every day at work for about 2 weeks and continue to compare them against others trying to find nirvana. The more other pairs I try, the more convinced I am I've found the best option for me. These really sound outstanding to me. The only thing I've listened to that got me thinking was some Sennheiser HD 558's today, but that's a very different comparison and not very fair.
The only thing I was wishing for was a bit more bass. Yesterday I discovered a better balance with my NuForce ICON IDO. I turned the digital out volume from my phone down to about half and turned the volume up from the NuForce instead. That seemed to get the amp into a better output range and I'm much happier with the sound I'm hearing now.