For anyone considering staying here during a colder time of the year, I suggest checking with the hosts what the heating situation is. During our stay central heating didn't work / not used by building. Aircon is very old, not efficient and quite loud. No heating in the kitchen/dining area. Even after 2-3 hours we didn't get the living room beyond 16-17 degrees Celsius in the evening.
Besides that, very good communication, great location, lots of space including a nice big balcony!