Don't stay there in the cold months of the year, the heating system is a disaster. There are 2 super modern AC units, but one is upstairs and the other one is high up in the open space so that all the heat only rises up to the sleeping area. Even if you leave them on the highest setting of 30° for 24 hours non-stop, you won't get a comfortable temperature in the living room but it will be boiling hot upstairs and you'll be forced to open the skylight, which is really stupid. We were there in a nice and sunnyJanuary period of 14-15° max during the day and maybe 7-8° at night). We even tried to heat the place with the kitchen oven, but it wasn't enough.
In messages the host agreed to a late check-out if no guests would arrive the day we left and we talked about the end of the afternoon. But when it came to it, they only gave us 2 extra hours which didn't make a big difference.