Cynthia's place was in one word - Great. It's strategically located at SF center, in a nice and quiet neighborhood.
The apartment had everything we need, the bed was comfy, and the sofa even more (we plotted to take it with us...)
Cynthia was really available and helpful throughout our stay. We arrived at 1am after a delayed flight, wake her up, and still received a warm welcome.
For a 1st airbnb experience, it was awesome.