Stayed at The Donatello in February 2013, my 11-year old daughter and I arrived in the evening of the celebrations of the Chinese New Year, lots of happenings in town, parade was just outside the hotel. The location of The Donatello is superb, everything is right on your doorstep; shops, restaurants, coffee places, it's only a minute walk and you are on Powell street, where the cable cars are running, as well as public buses.
Union Square is just a block away.
We loved our spacious and comfortable room, very comfy bed, and fun to see a TV in our bathroom! Great to have a small kitchenette, too, with both a fridge and a microwave.
On the Club-floor/top-floor, we enjoyed making hot chocolate/coffee, and the Concierge Team up there are really friendly&helpful, with lots of knowledge and expertise about SF and surroundings!
It's nice to be able to relax in the Club-lounge on the Top Floor, in front of the cosy fire, with daily newspapers or a good book.
It was also nice to always feel welcomed with a smile, whenever we returned back to the hotel.
Although I think the person who checked us in, perhaps didn't have a great day, however, it didn't spoil anything for us.
The Bell Team in the lobbyarea was also so helpful upon check-out, and reacted promptly when our prebooked airport-pickup never arrived. They made some calls and helped us so that we would arrive the airport well in time.
I would definitely return to The Donatello on my next visit to San Francisco.