I stayed at Julien's place for a bit over a month as I settled into LA. It is in a very nice location (right on the border of Beverly Hills and West Hollywood, close to Little Ethiopia) and situated on a quiet residential street near grocery stores/coffee shops/restaurants etc. Julien allowed me to park in the driveway everyday which was very helpful and he responded quickly to any issues that arose.
With regards to the actual space itself, it is a good size apartment--the bed is a king and extremely comfortable. It is relatively private (one can enter through the side door to get in--the guest house is in the backyard of the main house).
My favorite part of this house was the two wonderful dogs--I am going to miss seeing them every morning!
I had no problems during my stay and highly recommend this spot to anyone looking for a private place near Beverly Hills.