I'm a size 2-4 and purchased this dress at a sample sale in the bay area. It is super flattering, has never been worn and is unaltered. The fit on me was a bit large and was going to be fitted during alterations, but I decided to go with a different dress.
It hasn't been cleaned (since it was never worn), but does have 3 missing buttons in the back. I'm told it is easy to add new ones. And the bottom of the train is slightly dirty, although you can't tell unless you look up close