Wow what a great post !. Marriott is building dozens of new properties, several brands in China.

I truly prefer Marriott in China as the lounges are open on the weekends, including most Courtyard lounges.
BTW, the Hangzhou JW & Courtyard are in the same building, they have different lounges, but share the same pool. This is the only Marriott property in China with the brands sharing the same building.

edit; i will try the Marriott Nanning next week after reading allset2travel comments & 499+ pics !