I stayed 2 nights. And the first day, I had to stay in the cold flat. Because, all heaters in the flat didn't work well. So I kept in touch with Monika to solve the problem. She gladly tried to help me at second day. However, while I was not at the flat, her husband entered the house to solve problem. Even if, he solved opened all heaters, It doesn't nice to enter the flat, while I was not there. It would be better to wait me to enter the flat together.