Markus is a very nice guy and the communication with him was excellent. He responded immediately to any message and was very kind. The apartment is clean and in a very good location. However, there are some disadvantages:
1. The beds that are reached by ladder.
2. There is no air conditioning.
3. The bathroom is not inside the apartment, but in a separate room that may be shared with additional people that live in the building (it should be mentioned that no one entered the bathroom during our stay).
To conclude, we enjoyed very much the staying and Markus is an amazing host. The price is excellent for the value, but make sure that the disadvantages are okey for you.