We were happy with our choice and stayed for four nights. The studio is very clean and tidy, kitchen equipment is solid and we had everything we needed. The location is located in a nice and safe neighbourhood and walking to Little Italy is perfectly easy. Farmers market on Saturday mornings is a very nice recommendation.
Guests should be aware that the studio is located in the basement, so you will not have much daylight - as you will probably be out for the day exploring the city, this should not be a larger issue. Parking is an issue, but you can fit in an middle-sized SUV on the parking space with a little bit manoeuvring.
Communication with Urban Sands was good, but can be a bit confusing with different people communicating with you on behalf of Urban Sands. All in all, definately a recommendation booking for San Diego compared to other options.