The location of the apartment was great for us - although its a long walk into the centre of San Fran it has some great bars/restaurants to visit along the way. There are also lots of buses and the BART to connect you if you don't want to walk.
Communication was good with Justin, when we arrived there was some of the families (clean!) laundry left on both the sofas, so I just messaged and it was cleared by the time we were home.
The apartment itself was clean although much darker than the photos suggest. It didn't look as good as the photos which was a bit disappointing.
There wasn't anything left in the fridge for our arrival, in every other place I've stayed there has been at least some bottles of water.
The main reason why we wouldn't book again is the sound of the children upstairs. They must have a wooden floor as you can hear them crying, playing and running around from the early hours very clearly so a long lie on your holiday is out of the question. We were awake by 7am. Also because of the children, we were very conscious to be very quiet at night, which isn't really ideal. This is clearly stated on the rules, but I didn't expect the walls to be as thin.
If you have kids though then this apartment would be great. Lots near by and close to some shops for food.