Just thought I'd pipe in again.
I bought these headphones for critical listening, as a second reference for mastering complimenting my normal speaker/room environment.
I just had a new baby on saturday, and decided to do the majority of a recent project at home, then take it to the studio and check my work.
I was very pleased to discover that when I played the project back in the studio, not only did I have no surprises, but I really liked my work. This is not to say that the headphones are perfectly flat or anything like that, just that they didn't mask anything. If there was a problem, I heard it and corrected it. There were no problems that I did not hear. This is not my typical experience with headphones. Very encouraging! It helps that their sonic signature does come very close to my speaker/room setup though.
This kind of headphone probably polarizes people, since it does reveal problems. I've found in casual listening (doesn't really exist for me) that they really show recordings to be what they are, and I've only really enjoyed about half the albums I listened to on them. To me that's a good thing, but that's why I bought them. Not everyone buys headphones to find problems with recordings, but I do.
Money well spent. I might work from home more often now :D (though there's no substitute for the studio)
Very nice. I bought them for the exact same reasons! I plan to use them as my main choice for "casual" listening to help me learn them, and be able to pick out things i like and don't like from good/bad mixes/records.
Maybe in the future i'll buy me some different headphones. Maybe something a little more "fun". I was thinking HE-500, but got now i'm really enjoying these.