We loved this apartment. It was smack dab as center in Thessaloniki as you could get as far as a tourist is concerned. The building was completely quiet, and despite being on the central pedestrian thoroughfare that had people on it all the time, you couldn't hear a thing at night from the apartment with the windows closed. Which you could close because there was A/C in the apartment. Right below you was everything you could need in the city, from groceries, to food, to pharmacy, and shopping.
Checking in and out was a breeze, the beds were comfy, and it was well equipped, and it was a great price. We would absolutely stay here agai.