It's a lounge car, so it's a place to go to sit down and talk to strangers or others in your group and chill. I've also heard that phones don't work for shit, and wifi is nonexistent so it's kind of a "not a cell phone in site, just ppl living in the moment" kind of vibe on the train, so people are liable to mingle and tell interesting stories. Personally as a transit nut, I'd love to talk to people that work on the train.