In short I would recommend staying here if you are in San Diego. This was my first Airbnb experience and though I would still prefer staying at a nice hotel, this is still better than what you get at a hotel for $100/night.
Drew's place is exactly as he describes and per the photos. It is a detached garage that was converted into a guest house. The place was nicely renovated, a good size, clean, and great for a short stay. We made good use out of the AC and fridge.
Close to freeways and walkable distance to restaurants bars and stores. Generally able to find parking but got tough at times and you need to be becareful about parking street signs so you don't get towed.
Drew was very responsive and made the experience extremely smooth and seamless.