i bought a set of DC X11's, finally upgraded the 13.4's after 3 years hard time in the bush,
* for feel and comfort the X11's are great, the ear seals are directional so they fit with a good seal, they fold up small, seem a little fragile tho.
* the ANR is OK to be honest i was a little disappointed at first, then mine developed an annoying 'buzz/crackle' at low rpm in the twin and i had to return them. DC service was great they sent me a new set in a few weeks. It was not till i went back to the 13.4, that i really appreciated them, i do long sectors 6/7 hours a day normally and i feel alot less fatigued at the end of the day with the x11's.
* the MP3 attachment is great for long boring sectors
My 2cents
DS