Everything went smoothly, in an efficient and fast way with Leonidas: he responded very quickly and arranged our arrival immidiately, even though we had only reserved 12 hours before.
The flat is very clean and comfortable. I can really only recommand to stay there.
If there was really something to suggest, it would concern the entrance of the building, which requires a key to be opened, even from the inside. It would be much more practical if leaving the appartment did not require the key.