We had a great stay at David's apartment! The apartment is super nice, clean, tidy and although it's a studio it feels really spacious because the space has been planned well. The shower was awesome and the bed was great, big and comfortable.
Location wise it's perfect because the street itself is quiet and calm but it's just a short walk (or cycle - we found we could walk everywhere in SM) to the beautiful beach and pier, the metro station, and the busy 3rd St Promenade area. There are also lots of great restaurants very near the apartment and practical things like a supermarket and pharmacy too. Check out Bay Cities Deli and Pono Burger!
Communication with David couldn't be better, he was really helpful and informative. I'd definitely stay here again next time I'm in town and recommend it. Thanks again for an excellent Airbnb experience!