Clearly better than a hotel, but there's better options...especially for Portola Valley area...for the same $
This place is nice enough and has some distinct advantages such as a memory foam mattress, and nice location with views and a modern kitchen. The bathroom is well decorated and stocked and the shower is good too.
But for a guest house in tony portola valley, this doesn;t compare to other nicer places I have stayed. Specifically, the furniture is pretty worn (Desk is banged up and main leather chair is worn and splitting on top), the coffee maker is a joke (Cheap B&D model whose carafe doesn't even fit) and the TV is fairly small (27-32"). But my main problem was the main living area with a double sliding glass door looks directly out to the main house and driveway..and yet it has no curtains at all. So a lack of privacy that was not shown in the pictures.
Look...this was a comfortable place to stay overall. the bedroom was nice, the bath and kitchen are modern and the living area is large enough that it was comfortable for me alone as a business traveler. But the cheap coffee maker, the lack of curtains on the main window and the run-down feel of the living room furniture makes this slightly below average for the area. it's a fine place....and FAR better than staying in a hotel...but there is definitely better to be had.