Couple of pros and cons...
Pros - The view is very beautiful and the pool is definitely a plus. The apartment has mostly everything you need for a short stay including a kitchenette and small fridge.
Cons - Our biggest frustration was that there was no AC in the unit even though it’s listed in the amenities. There were vents, so my guess is the hosts could turn it on for you from the main house but it’s a little misleading in my opinion. The fan in the bedroom was also broken, so sleeping was pretty hot. Other than that, the walls are definitely paper thin between the guest apartment and the main house, which led to some interesting instructions. The welcome booklet warns guests that all their conversations can be heard so guests should keep it down, and we were also instructed to sleep with the bedroom door closed because the host would be using her coffee grinder in the morning. I’ve used Airbnb quite a bit and this felt a bit odd. Lastly, on our last night, the hosts also parked their RV right in front of the bedroom windows so we woke up to darkness in the morning instead of San Diego sun.