We liked it very much!
The house has its entrance on Platia Aristotelous, which is the most central point in Thessaloniki. Despite this location, the flat is quiet because it is on the opposite side of the street. You only hear cars and people there sometimes, it was never loud.
The flat is normally furnished, with a kitchen, a living room with a large TV, a bathroom that is very good by Greek standards, two air-conditioning units and a bedroom. In the living room, the couch can be modified into a bed for 2 people. The only thing we were missing were clothes hangers, but this was a minor issue.
Communication with our hosts was very easy and they were always easy to reach.
In short, the flat can be recommended by us and is an enrichment for AirBnB.