We've stayed in the valley in the past, so know what to expect. We stayed at the house, not the camper during this trip.
Overall 3.0-3.5/5. Eclectic look/feel was great, the wife loved it. Outdoor space was great for entertaining, gathering, night bonfires, etc. Plenty of space inside, full kitchen, dining room, small living room, large bed, somewhat comfortable, cool decor. Location is great, close to some wineries and restaurants.
Cons - unreasonably hot inside during hot days (metal roof) and no AC (no biggie if you spend day out at wineries and restaurants), very cold inside during rainy days and cold nights, small space heater provided, mostly an issue when showering as water also was lukewarm to somewhat hot, but bathroom temp was around 60-65 degrees. If you care for wifi, available closer to main office, signal did not reach the house. No window covering so there is no privacy or a way to keep light out.
No TVs (we did not care for it), small radio provided, bring your own entertainment. Towels and TP provided. Property administrators were onsite when checking in, they were not available after and did not return the rest of our stay.
Opinion: I would stay here again, but not worth $200+/night