So, the lounge was open right from when the Virgin check in desk opens, as the South African Airways flight uses it, as well as Lufthansa.
Found a problem with both of the Internet PCs, so I fixed both of them. Was offerred a bottle, but declined. Now we have 2 internet stations working, and 1 left on VFlyer, and the Concierge was very grateful, she had been trying to remember the website URL all day !
Decided not to upgrade myself, as it's only a short flight home, I'll try and upgrade next time I head out of SFO.
I really like this lounge, much smaller and friendlier than the others I have been to. Perhaps I'll have to put up with United to stick with the friendly folks here at IAD !
Mark