Was in the VS Clubhouse yesterday. Really quite lovely. A bit limited by VS standards, it's a very small lounge and the CSRs are rather concerned that you leave your carryon with them rather than crowd the lounge with it at your seat. But any place at IAD with showers, a menu, and someone to serve you is a step above for those of us used to the UA RCCs.
It's really quite nearby the Air France/ANA lounge which is not nearly as nice. The one positive about
that lounge is that you board the plane directly without re-entering the terminal.
But otherwise the VS Clubhouse is tops for IAD.