SPG and Hyatt Club lounges in the US are woeful compared Australiasian properties.
If you want good examples of club lounges:
Hyatt:
Park Hyatt MEL
Grand Hyatt MEL
Hyatt London Churchill
Hyatt Regency Sharm el Sheikh (The Regency Club has its own pool AND a private beach separate to the rest of the hotel where soft drinks, tea, coffee are available all day)
SPG:
Westin Siray Bay - Platinum cocktail hour (2 hours, in fact) is on the rooftop of Prego and you are given the entire cocktail menu with pricing removed. You can order Passionfruit Mojitos, Lychee Martinis etc.
Sheraton on the Park with fresh oysters, stunning view of Sydney Harbour and Hyde Park