We stayed at Yuca's place for 4 nights, a great spot, handy to the Castro and really recommended if like us, you'll have a car while in SF.
We received a warm welcome and really did feel as though we knew someone on the city we could turn to if we had any problems. We loved the breakfast recommendations in the mornings!
The space is a great size, excellent bathroom and shower. The bed is SO comfortable and we had several great nights sleep here. Would be my first choice for my next time back in SF.