Clean, comfortable, and welcoming. Would stay here with the family again. Best feature was the location - ability to drive anywhere within 10 minutes. Street parking was no problem - always found something either right in front or within 1 block of the unit. Didn't find it noisy. There was 'city' noise from time to time, but nothing nearly bothersome - and Michelle left ear plugs for us in case we wanted them. The futon worked great and is firmer than the bed, if that is your preference. There's a fan if it's too hot and a heater if too cold. Michelle was very responsive to messages.
All in all, unit is well-priced, met all our needs (two adults and two kids) and provided a good base for us to see Gaslamp, Oldtown, zoo, downtown, Hillcrest, museums, Balboa Park and more. Would recommend to others visiting San Diego.