There are two properties, the Waldorf=Astoria & The Waldorf Towers. The Towers are the higher floors.

We stayed in the W=A and was told that W=A does not have a lounge and the Diamond members are not allowed to use the 26th floor lounge because that is for Towers guest only (we were told all Towers guest have access to the 26th floor lounge).

I love the W=A lobby, and was upgraded to a suite our second night, but both rooms had dinky bathrooms (yes, I know it's NYC, but small bathrooms in a suite???). The room was nice, nothing exceptional, the bathrooms were smaller than expected for a suite, and being Diamond and not allow to access the 26th floor was a bit of a disappointment.

Haven't been back since.