Dear Mrs Greek lady Despoina that you live in Germany and is yours first time using the platform of airbnb, i saw yours opinion about 12.00 in midnight, but i will spend 10 minutes of my life to give you an quick answer.
1. About cleanliness.
The house has been totally cleaned by 3 persons one day before you came. My, me wife and one cleaning lady. It is extremely important for us the cleanliness of our house. Under the stairs was the specialist strong hoover that we use for the carpets and the ceiling. The smell that you are writting maybe comes from the wooden floor. Maybe you are not used of such material. The bathroom was been washed everywhere with chemicals and boiling water. It cant be anything in the toilet seat.
The balconies are closed by using back rod between the two sides which provides additional secure. It is not my patent ... its way of closing. The house has central alarm security system as well. In addition If you know how to use the keys it takes 2 sec to lock the doors.
All yours unsatisfaction and your inaccuracies that you white comes from the heating.
The house have multiple ways of heating . 3 electrical small heating systems 2300watt each, 1 aircondition 12.000Btu for heating and cooling , 1 fire place (with full of wood) , 1 dehumidifier and central heating with petrol.
When you ask me for the heating ,i sent you back all the necessary informations. We only use central heating for temperatures below 6 celcious. Despite that you have all the other electrical heating systems to heat a house of 80sqm. The word frozen is inaccurate.
About the outdoor lamp, you have turn off the main switch of common lighting. About the stairs lady despoina are wooden made. Of course are a bit creaked. Anyway.
Thats all ... its time to bed. I am really curious to see your house in Germany. Have a nice year. God bless Germans mentality