The people are first so the host was very pleasant and helpful in all aspects. We arrived earlier and departed quite late and she was very kind to allow us to stay slightly more.
The apartment. There are apartments you should feel and it is hard to express your feeling in words. It has its own soul. You will have everything you need for a long stay as well as for 1-2 day stay. But I would recommend staying at least a few days since the city is very interesting. You won't to get it for 1-2 days.
The only thing you should care is transportation. The area is quite hilly. I think it is fine if you travel without kids. Otherwise, you better use taxi. One ride costs 4-5 euro.
We found that food in delivery service is far from you will get if you will visit local restaurants. Please visit local restaurants.
The number of places you can visit in Thessaloniki and around is astonishing. We plan to visit once again after pandemic to visit museums, Olymp mountain, Kerkini Lake.
Thanks again for your hospitality and kindness.