The apartment is excellent and exactly as described. Much better than any hotel I've stayed at in Thessaloniki. Nadia arrived very promptly to let us in and show us around. There is a wonderful TV with Netflix. It was reasonably easy to find but you need to study the Google satellite image before you leave. Certainly not at the location mentioned in Airbnb but the lats and longs provided are accurate.
The location is poor. You cannot walk to a tavern or shop and we found the road network appalling in Thessaloniki. Not for the faint hearted.
But the apartment is really really nice. No breakfast is provided.