We stayed with Alexa and Seth while on a business trip. There apartment is super clean and the couch, which we used as a second bed was super comfy.
The location of the house is amazing, there are lots of great restaurants nearby and you are able to be downtown in just a couple of minutes with BART.
Be sure to check out their restaurant recommendations, we had some amazing food thanks to Alexa and Seth.
I can only recommend everyone to stay here. The hosts were super friendly and very helpful. I would definitely stay here again, the next time I visit San Francisco.