I really enjoyed my stay at Del's place. Room is really nice and bed is fantastic; my shoulder injury improved a lot during my stay there:)
Everything is perfectly clean and organized and in case you nevertheless still have questions, Del always have an attentive ear to help you out!
Moreover, Mission neighborhood was a good choice and it is probably the place to be in SF.
My stay in SF couldn't be best than by Del's place and I recommend the place to anybody.