I've been staying at the Grove Inn for 20 years! and simply wouldn't think of staying anywhere else. The touristy parts of downtown San Francisco hold no appeal to me: and what's special about the Grove, is that it is so unlike the characterless hotels where you really have no sense of their being any different from their replicas in other cities around the world.
The comfortable rooms, furnished in keeping with the building's long history (it's nearly 150 years old), have supremely comfortable beds - and free wi-fi access. Breakfast is included: a convivial occasion, as guests share communal tables and really "connect".
The Innkeeper, Klaus, is truly delightful; very knowledgeable about the city, and he presides over the Inn with a very special style.
"Bed and breakfast" in my home country of England, means somewhere cheaper than a hotel, often rather basic. In the US, it means somewhere really rather special - and the Grove is an outstanding example. Maybe you can stay at a characterless modern building for less money: but choosing the Grove will give you a memorable experience. Being in a residential neighbourhood, rather than downtown, means it's much more peaceful. The frequent bus service is reliable, and downtown is within easy walking distance, anyway: or, if you head in a different direction, the quirky delights of Haight Ashbury (populated by people who must be the children of the "flower power" people of the 60s, but the "vibe" seems so much the same.....) are nearby.
Stay in formulaic hotels if you must - but you'll miss a real treat, if you don't go to the Grove Inn!
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC