Leticia should own a Bed and Breakfast! Our stay was 6 nights and we loved it. I HIGHLY recommend staying with Leticia in her home which is in the true heart of San Francisco right by Golden Gate Park and a close trip out to the Redwood Forest. Any decent hotels that didn't seem scary or really dirty were AT LEAST twice the price of Leticia's nightly fee. And we thought this was better than a hotel because of the cozy living room, great sight-seeing and restaurant advice, and how "homey" and comfortable it was.
Letica made herself as available or scarce as we wanted and we often texted her when we were out to recommend a restaurant or another sight to see.
It was quiet, I loved the shampoo/conditioner she provided and her great tasting granola! She was SO accomodating. I emailed her to ask if she had a fridge and she didn't, but went out and bought one for the space the morning before we arrived!
Tourist Tip: If you've never been to San Francisco, we were there in February and my wife was freezing outside, so bring a heavy jacket or coat, or ask Leticia what she recommends for the month that you are staying.
If you use a car to get around, get the shortest car you can because parking is very interesting and our car was a little long for parking spots. Walking and public transportation is doable too, and probably preferable to getting a car because parking is really difficult in the city and only 2 hours outside of Leticia's house.
You will have a very nice stay and save a bunch of money with Leticia!