Well they are here!
Currently listening to Massive Attack's Mezzanine album, they aren't "bass light" they are more like bass controlled if you know what I mean...
As for sound quality well they certainly blow my Hifiman RE0's out of the water for balance, there is slightly more detail in the finer parts of productions, but I wouldn't say the soundstage is wider, also as with any kind of closed back system they have that slightly boxed in sound, only slightly though.
Another thing with the sound of these headphones is that they never sound strained, for instance listening to Peter Gabriel's So album, the vocals on Red Rain are always under control and never sound distorted or strained, on other systems you can hear them give on this track.
The build quality is superb as to be expected for a headphone of this cost, just got to try and experiment with the positioning of them now to find this "sweet spot" mentioned in posts above, I bet I struggle with my odd shaped head!
;-D