The apartment
It's fine place, but not excellent. Good bed, comfortable couch, enough closet space, very fast wifi! Main disadvantage is that it is very noisy. It's on the 6th floor of a busy street with lots of noisy buses. The windows (in particular in the bedroom) have a gap in between the glass panels and no noise isolation at all, so it feels like you are sleeping on the street side with windows open. There are window screens, buy they hardly black-out. Besides this, there is nothing really wrong, but it could improve on some details. The kitchen is reasonable adequately equipped, but some essentials are missing, such as scissors and a cutting board. The cork screw was broken. The water pressure in the shower is very low. It is difficult to set the temperature not too hot or too cold.
Cleanliness
It was fairy clean, but there were spots on doors and black-out screen. The table was set with plates and cutlery (like on the picture, not necessary for me) but some of the cutlery had food leftovers on the back.
Location
Central location, very close to the subway and within walking distance from the city center. The building has a large supermarket on the ground floor. There are some restaurants around as well. After 8pm it's quite dead and not the most lively area.
Communication
Fabian was an excellent host. He answers promptly, communicates in English and did his best to make our stay comfortable. When a coffee maker was missing, he immediately took action and let one bring to us the next morning. Fabian is working for an agency which is running multiple Airbnb's, so communication is partly by standardised text templates. Sometimes we received contradictory info, because info which was sent initially, belonged to another apartment (e.g. on how to get into the apartment). Communication style of the templates is also a bit passive aggressive. Lots of rules and fines. I understand that there are rules, but they are part of the add and do not need to be communicated three times. Especially not since the reservation was not automatically accepted.