After spending the day listening to this double disc SACD set, I can honestly say it's vaulted to near the top of my SACD list, just fantastic in every way. Great sound, awesome performance, great music. I'd actually not heard her until I bought her newest CD, New Favorite. (I'd say it's now one of my new favorites!).
For those who haven't heard her, her music is sometimes called "New Grass"; basically this is bluegrass music with some smooth, pop influences. Some of her music veers off somewhat into the area of flat out country, but not too many tunes do.
Krauss is the producer for Nickel Creek, and their music has some great similarities. And both boast very good sound quality, too.