II've stayed at 3 Autographs so far, all checkin staff were coversent with the program and I was upgraded to a suite on 2 of the 3 stays. All 3 provided breakfast and pointed out that it was free as I was a Platinum. Free breakfast 7 days a week is a stated benefit for Golds and Plast at all Autograph properties, though a few named ones may be exempt at weekends as of course are any resorts 7 days a week...
I read on TripAdvisor that some people had issues at St. Ermin's hotel when it came to breakfast. They were charged anyway for it even though they had Gold status.
I better read up in the Threadneedles, I decided to book a room there for a night...just to be in a diff part of London.
one of my first "free" breakfasts as a Marriott Gold was at an Autograph hotel in Palm Springs. The hotel was awesome and everything about the experience was awesome, but the breakfast was toast or croissant and a bowl of fruit and coffee or tea. They had barely opened and I was new at gold so I thought that was the norm. Imagine my surprise at some of the other breakfast offerings. I'd still go back if I had the chance though. The hotel was a ton of fun.