They really warm up your ears in the winter.

Wrong again, I should have listened to the ONE reviewer who said it was the exact same sound as the Pro-10 (listed as "bass") only with more comfortable ear muffs.

They're very comfortable and cup your ear well enough to block out a decent amount of outside noise

I think its actually because of the really soft ear cups too which is a shame since I love them

although i don't know much about audio, to my untrained ear these sound incredible, and they are very comfortable

As far as build quality, these headphones are not super heavy and the padding on the earcups is like having a very plush pillow surrounding your ears - maximum comfy and relatively good sound isolation.

The only other comment I'd make is that the Deep comfortable ear cups make the set look pretty large.