I had a great stay at Heewon’s apartment. The location is great, right next to Polk Street, full of bars, restaurants, supermarkets and anything else you need. It's also very central, close to San Francisco main touristical attractions within walking distance.
The apartment have everything you need to live on a long term, and Heewon have put a lot of effort on providing anything I needed, without even asking.
I couldn't be happier with my stay.