This was a lovely and very convenient Airbnb in a safe residential neighborhood in central San Mateo-- convenient to get downtown and to a major thoroughfare (El Camino). The rooms and the beds were comfy, and the accommodations modern and clean (e.g., kitchen and bathrooms). Lots of kitchen space. And while you can hear the trains almost anywhere in downtown San Mateo, they were not so notable as to be bothersome and, when they were not going by, it was very quiet. The hosts were extremely responsive and very attentive. Highly recommend.