We're from the UK and stayed a week with Johanna and Bob whilst visiting the bay area on our tour f the US. Just cannot say enough good things about our hosts. The welcome was warm, the coffee always fresh, the accommodations spacious and so comfortable we had to drag ourselves out of bed each day. Johanna cooked us a wonderful breakfast on Saturday and we enjoyed many pleasant conversations.
San Carlos is a pleasant little town in commuting distance of the city with excellent public transport links. There are plenty of restaurants & bars within a few minutes walk, we especially liked Sneakers for a casual lunch or evening meal. Half Moon Bay is about half an hour away by car if you want to hang out by the ocean.
If we go back we'll definitely stay again and will certainly recommend to any friends headed this way.