Eleni is the perfect host!
We arrived arround 1 am because of our late flight but she made us feel very comfortable despite of the very late check in.
She was very responsive with everything we needed.
The apartment was very clean and very big with a cute terrace that was very useful. The location was perfect, most of our hang outs were near the appartment.
We will definitely come back to Eleni's place next time we're in thessaloniki.