The 497s are my most balanced headphones. For my taste, they're just about perfect. I have tried them for classical music as well as rock, jazz & R&B, and for my taste, they handle everything well. Classical sounds smooth, transparent, open and detailed on them to me. They are just a tad beyond neutral in treble for me -- they are just short of bright, but closer to "bright" than "dark," which is what I prefer. And there's just enough extra bass to make the experience visceral rather than dull. But the bass is in the lower bass area, where it stays out of the way of the silky-smooth midrange. If I was to have described what a pair of headphones should have sounded like before I got my 497s, the 497s sound would have come very close too it. I can't really think how I would have improved on it. So I agree with Jessica's review -- they are a great buy. The biggest negative is comfort, for me anyway.
Still, I end up listening to my SR60s and MDR-V6s just as often! Go figure!