To say it in one sentence, Yiannis is the perfect host. Upon our arrival, Yiannis awaited us in the flat with refreshments and sat down with us nearly in hour to show us all his recommendations for Thessaloniki in terms of food, sightseeing, trips etc. We took many of his suggestions and they were all worth it. He provided us with extensive material on all kinds of activies (detailed descrpitons on what to do, how to get there etc.) and was also always helpful and nearly immediately answered all our questions also during our stay.
The apparment is very nice, well tempered even in the middle of the summer and the sorrounding area has lots of very nice and not pricy taverns to dine out and the city center and all the main attractions of the city are reachable within 10 - 15 minutes. All in all I have to say that I would highly recommend everyone who comes to Thessaloniki to stay with Yiannis and we certainly will if we ever return.