The information on how to get the key was given to us literally last minute. The room was clean but the couch had no cover and a stain on it. The cleaning lady knocked on our door at exactly the time of the checkout (we were not late to leave) , we felt like we were being kicked out.
In general, this is a building with only small airnbn rooms. Our room was like a student studio but very uncomfortable, the space was not well designed from the beginning.
Thessaloniki is a city with warm and welcoming people. Instead of staying in places that don't value and respect the guests, I strongly recommend to rent a room from a local, that will take proper care of you and show you real hospitality.