Charlotte's place is very well situated in the city - you can walk to the nearest metro station in 15 minutes. Very convenient for travelers. There is a supermarket nearby, which is nice too.
Charlotte is a very attentive host: we stayed at her place in December and it's the coldest time in LA, so she provided us with extra blankets and a heater. If you are sensitive to cold like us be prepared that winter nights in LA sometimes are very cold, and at this place, you can only survive with heater :)
The only serious problem we had was with Wi-Fi. The connection was very unstable inside the house but was okay outside (at the pool).
Overall Charlotte's house is a decent place to stay at LA. Oh, and if you love animals like us, you would definitely like her cats, that often walk near the house - they are HUGE and beautiful. At night these cats sometimes run on the roof: don't be scared, they're just having fun :)