Nektarios' place is fantastic. My wife and I were there for three nights and it was the perfect base for exploring Thessaloniki. The location is very central and only a few minutes walk from many of the major sights, pedestrian areas, and great bars/restaurants.
Aside from being in a great location, the apartment was beautiful and had everything that we needed for a comfortable stay. The building has an elevator, the apartment has a washer AND dryer, and though we didnt use it, there is also a great kitchen. Bed was comfortable, and even though the apartment is a stones throw from a major square, it was very quiet and peaceful.
Nektarios gave us great information ahead of our visit and met us to talk through everything we needed to know about the space. He was very friendly and welcoming.
We had a wonderful time here and would absolutely stay again, next time our travels bring us back to Thessaloniki. Highly recommended!