I really enjoyed staying at Maria’s place it was exactly as described. It was conveniently located within 1 mile of the Moscone center which is where my conference was held. She was very kind and quick to reply to my questions. During my stay, I would go to Slightglass coffee which is right around the corner. They had high quality coffee and they roast their own beans.
On a side note, yes there were several homeless around the neighborhood but that’s an inherent problem in SF. You can pay about twice the price and stay at a hotel in downtown but personally that wasn’t worth it.