We didn't meet Jeffrey, but he was easily reachable and replied very soon. He left water and chocolates for us, it was a nice extra.
The rented space is separated from the host's unit by some locked inside doors. However the noise isolation seems to be weak, so we heard them sometimes and they probably heard us. The hot tub is loud when it operates, so I could not use it late at night, as I was aware of the thin walls. That's why this place didn't feel quite like a private accommodation.
Also we were surprised that there was no door to the bathroom (the bathroom is adjacent to the bedroom), we didn't realise this from the pictures.
On the positive side, the heating works really fast and it takes just 5 mins to warm up the unit. There were two showers and sinks, which is also nice. There is a huge wardrobe as well. The bedding was very new and pleasant to the skin. Thank you, Jeffrey! Sorry we forgot to take out the garbage!