I've enjoyed them, and they do a great job of isolating the sound. They do a better job than my HD 800s with bass, and they're just right in that department. I bought them for an open office environment, and I just found that I'll be happy to tote around my HD 800s (probably to their destruction!), so I'll give them up. They have a 4 PIN balanced XLR cable from Mr. Speakers, and come with a hard case from Slappa, as well as a velvet Mr. Speakers bag.
They have very few hours on them. I bought them from another Head-Fier a month and a half or so ago. It was missing the sticker on the headband detailing its default tuning adjustments, unfortunately. I was assured by the that no changes were ever made to its tuning.
For $515, I'll include the Slappa case and shipping to the contiguous USA. I'll provide a discount of $10 to any international shipping, which will be at cost.