Apologies, hasn't been a Renaissance hotel for ages. It's a Marriott (full service). Didn't want you to mix it up with the Renaissance hotel at LAX which has a free shuttle also.

This Marriott is on a golf course so the aspect is quite pretty. Several restaurants in that property so the idea you are meeting someone or going for lunch is very plausible. At one time, AC crew stayed there.

If you stay in the airport, you can also go up to the observation deck of the restaurant. Your older one might like that. I think the restaurant is still called Encounter. Don't have to eat there to use the deck which is one floor higher than the actual restaurant. Free standing structure in the middle between the various terminal buildings. It would mean doing security again to re-enter the terminal.