We enjoyed staying at Alex's place. The location is central if you are visiting Palo Alto and / or other locations in the Bay area. The apartment and the premises are clean and the room we stayed at was quite spacious for 2 . The bathrooms are modern and the bed was very comfortable.
The only downside with the place seems to be the heating system - the room was quite cold at night and very hot in the morning when the heating finally kicks in.
Overall, it's a very good value for the price.