7. I hate to let others in on this best kept secret, but The Donatello and its wonderful staff deserve better, so here it is: if you are planning a trip to San Francisco (business or leisure) and you are looking for the most spacious and well designed rooms in town, central location (one block off Union Square), if you appreciate being treated like a guest (compared to the number treatment you get at most other hotels), and if you want the best value you can get The Donatello is the hotel for you.