This is a beautiful space in a fantastic location! Peter was wonderful in accommodating our travel plans when they didn't line up with the given check-in and check-out times, and provided a secure space for us to store our luggage so we could explore the city on our first day unencumbered. The neighborhood itself is quiet and tranquil (a big bonus in a city like San Francisco), but a 10-15 minute walk puts you in the heart of Inner Sunset's prime "downtown" area with lots of restaurants and cute shops.
Do be aware that "Studio ON THE HILL" is not an exaggeration! If you choose to walk around rather than taking the bus or a Lyft, you'll definitely get your exercise going up and down the tiled steps. But I can't imagine a lovelier way to do it -- it's definitely much more scenic than a gym!