Chicago Lounge

Been thinking about a Washington/Boston/Chicago trip next year and just spotted that a couple of Gs were available into Washington and out of Chicago for our preferred dates. I get the impression 2 G seats on the same flight is pretty rare so I've just nabbed them. I was a bit short on the miles front, but with 20% extra promotion, the 55k I needed were only £700, so how could I say no?
Anyway, as I'll be flying home from Chicago, I was wondering if anyone had any thoughts on the lounge? The VS site says it's the Air France one...
Anyway, as I'll be flying home from Chicago, I was wondering if anyone had any thoughts on the lounge? The VS site says it's the Air France one...