Shure SRH1540 - worth the price?

I'm looking for a good set of a closed cans to accompany my HD600's, as my working environment has recently become pretty noisy during the day and is sucking all the enjoyment out of listening to music.

I've read some overwhelmingly positive reviews of the Shures on head-fi, some going so far as to describe it as the HD600's of closed cans, while others say it actually lacks in the mids. Most everyone says they're incredibly comfortable though, which is very important to me too.

Anyone have personal experience with them?

Any similar options available here that would better suit my needs? (those being SQ, noise isolation, comfort)

Thanks!