Construction on the first floor so you can expect to be woken up at 6-7 in the morning. Generally flat has many improvement potential, starting from that light was not working in the hall, entrance doors are hardly closed and locked. If you put a light on in a toilet it automatically transfers the light to the sleeping room.
Wires should be repaired due to potential safety issues. Floors should be cleaned in order to be able to walk barefoot or at least slippers should be provided. Additionally flat is not bright as it looks in the pictures.
Lastly host mentioned some funny potential charges like losing key (150E) or late check out(30Euros fine or smth), never heard anything similar before. There are much better ways to make guest feel welcome like for example buying a bottle of wine.
Check in could as well go bit better, because building has two or three entrances, so its a bit difficult to find a flat at the first try.
However flat has a great location and two sleeping rooms. If the host would put a bit effort into improvements, this might be a good deal. Other than that with the current picture, its not worth the money which is charged.