I never stayed at the Marmont, but I wandered into the lobby/foyer as part of my explorations of LA. When I first moved to LA in the early 80’s, I loved 1920’s/1930’s Hollywood and lots of my film/video clients were in offices on Seward St (the “video ghetto” we used to call it) in bungalows that dated to that era. Plus the major studio lots where I went on occasion to visit clients all dated from that era.
The Marmont had a fairly large lobby with Spanish tile and castle-like overstuffed furniture, probably looked just like it did in the 30’s. It was very cozy, not exactly my style but it looked right for the hotel. And of course you knew you were in this famous place. Fun.
Lots of pix at google images.
I’ve never been there but I gather that it is still a major events space.