Unfortunately we found it average due to a couple of things that caused us to be uncomfortable. The concept was great ie: location and inside look. But in reality we were cold. After taking time to figure out that the heat pump was actually working, we couldn't get the roman blind to work (and we own one at home!) and so the living room was cold, the leather seats were freezing. We ended up in our jackets for the evening while inside.
The bedroom fortunately was warm as the air did manage to go in there and be trapped by the curtains. We had already contacted Karen for a couple of things we couldn't make work or find and so we ended up calling it a day.
I think in the midst of summer it would be a different experience and especially so if other little things I PMd about are taken care of.