There was no mention that the 101 Diner is famous for being in Swingers. The rest of the building looks a lot more classy than it used to, but in a way that you can tell that they said "we need to make people think that this looks good inside" so it seems fake.
I wish that the Julie/Gary part had been filmed, just to see how Gary appeared and to see Julie's reaction. I think I liked that more than her "OH MY GOD!" when she found out that Vance got married.