Niko’s apartment is a mixed bag. If you are looking for accommodations that are very close, if not the closest to the entrance to the Acropolis, and if you are expecting to just sleep in the apartment and not spend time relaxing there, then this is the place to stay.
It is on the (US) first floor/(EU) ground floor, 5 or 6 steps up from the street sidewalk that is just outside the windows of bedroom/living room. Though it’s a busy two lane street, there was little street noise at night.
The kitchen is small, but functional. It’s not inviting for sitting down and having a meal, only best for preparing meals to go. The one bathroom is quite small.
The rooftop terrace is accessible via three flights of stairs, watch your head at the terrace landing as the roof is low there. However, the view of the lighted Acropolis at night is absolutely stunning. One evening we had light appetizers and drinks while sitting and admiring the view.
Unfortunately, the apartment needs some maintenance which I pointed out to Nikos.
As for Nikos, he was VERY attentive. He made arrangements for our transportation from the airport, and then to the port of Piraeus where we caught our ferry for Sifnos, but of course we paid for the transportation.