My parents stayed here for a week as a b-day present. In general, it was quite good, but there were some details which made me sad
The main handicap was the cold. I had to write few times to Rudi to raise the heating, but it was not enough or only short term during the night after my messages but not during the day. I understand the wish to save gas, but if the guests pay for a stay in winter, I expect a warm place, at least at room. By check-in the bath was very warm and other days cold. I stayed with my parents on the first day and the kitchen was very cold even with 2 sweaters and tea.
Some small issues:
-the floor was quite loud, you could hear the steps.
-why close the loud door of the guests in the morning?
-why start cleaning and opening windows in cold winter on the departure day instead of waiting till 11am?
-why not put more general heating and let the guests decide to turn it down when it's too hot?
Sorry for my critical comment, and thank you for welcoming my parents!