But to be serious, brand new out of the box, with barely 30 minutes playing the new (still unreleased, actually) Patrick Wolf album, and they have the bigger bass and wider soundstage (than the HD595s) that I was looking for, plus bags of detail. Also they're supercomfortable, more so than the HD595s even, and I think they look a lot better too.
Yes, these are, I think, the headphones I've been looking for to complement my MS1s. That bit more involving and exciting than the Senns, and more refined / spacious / less rocking than the Alessandros.
Yes. Talk Talk will sound amazing with these.