Molly's place is a beautiful and well cared for guest house immediately adjacent to the main house. You get to enjoy a lovely back yard as well, and there's even a nice little space just outside the guest house for your own private happy hour! (Molly even thoughtfully provides a bottle of wine.) The GH is in a very quiet residential neighborhood though incredibly close to major highways, so it was remarkably easy to get everywhere from Palo Alto to San Jose to Half Moon Bay and so on. Plenty of nearby shopping and restaurants as well. Molly (and her husband, Munir) are great hosts too. Communication is very easy, and they were quick to address some minor issues that were left or ignored by the last guest.
The only thing that stops me from giving this 5 stars is that there is no comfortable seating in the GH on which to work. There is a four-seat table, but it has stools not chairs, and the only seating in the living space is a futon that reclines pretty far back. So if you're looking for a vacation stay or your work will take you out of the GH during working hours, then this is the place for you. Also, the GH is right next to the main house, so noise travels easily between locations.