We stayed at Ken's home for over a week with 2 kids (15 month and 3.5 year old) and it was great. We had space for each kid; Ken set up a crib in one room and a floor mattress in another for the older kiddo. We were thinking about renting a toddler bed but as soon as we mentioned it to Ken (who reached out both before and during the stay) he brought up that as an option and it saved us a bunch of money!
His home has all the stuff you need as parents (and adults) - shampoo/soap in showers and bathrooms, lots of towels, toys, books, play equipment in the yard, beach equipment to use, a grill that works and isn't rusted to oblivion. Oh and the one that stuck out to me: you can use the garage! That's a first for me in an Airbnb and it was awesome.
This location was really perfect for families too; we had the ease of lots of restaurants and shopping nearby for provisions, but you're equidistant from the Zoo, Legoland, and popular beaches. Next time we're in San Diego we'll be looking to see if Ken's place is available!