I suppose these are fairly rare so I'll go ahead with my impressions. I think they either need a lot of burn in time or are kind of on the midrangey side. I say this in reference to the grado 125s I scored recently also. Gotta say, the grados are really sweet.. and being not half as funny looking as the ergos it is kind of a no brainer at this point in my listening. I can see how if the ergos burn in and soften alittle in the midrange the killer airy/roominess about them could make them a really nice set of cans, but at this point, at only a few hours of burn in, they dont compare to the grados in quality but they do have a "bigness" about them that is kinda cool.