I'm not sure Ambient is the word here… more like heavy. First thing to notice once they come out of the packaging (which is fit for a god) is that they look a lot smaller, but shinier, in real life. Sound-wise, the bass isn't all that great. Really heavy guitar tunes feel like they're being muffled out a bit, but the more quiet and sounds come out really clear. Personally I'm prepared to live with the bass quirk but these headphones work a lot better for classical music than Rock. The sound in switch makes no noticeable difference but at a decent volume these headphones completely block out all other noise on their own, so the switch isn't even needed. The 80kHz range is a nice feature but human hearing limits at about 20kHz, apparently it does benefit the sound quality in some way but I don't have the tech knowledge to know how.
Design wise, they're to die for. I've found they fit perfectly round the ears and I have friends with pretty large heads who've said the same thing. That ridiculously short cord does in fact come with a 1 meter extension and you get a small leather pouch to keep them in. One fault reported by a lot of the Amazon reviews (they've called MDR-D777LP in the states) is that apparently the Y connector snaps after a few months. I haven't had them all that long but I guess that means fragile handling is one of the down sides.
If you want perfect bass then these won't satisfy. Otherwise if you're willing to overlook the technical quirks and know how to handle with care, they're still a comfortable and attractive set you can definitely show off with pride, as has become Sony's signature.