Staying in Melissa's camper was a great experience – a feeling of camping outdoors in the Californian mountains, without having to leave civilization behind.
The camper is in great condition, and offers everything you could need. Listening to the rain hit the roof (on the rare occasion it does rain in Cali), is one of the most comforting sounds to fall to sleep to I can imagine.
Melissa was very helpful and responsive, whenever I had a question, and there's a folder full of great recommendations waiting for you.
The entrance to the State Park and its countless trails is more or less around the corner, it was amazing to just leave the property and be in the middle of stunning landscapes in minutes.
As usual in the States, if you want to explore any further, a car is recommended. Topanga town center, with lots of cool shops and restaurants (including a Pizza place selling vinyl), can easily be reached on foot though.