The host responded in a timely manner to questions. The flat is in a great location. Walkable to all the tourist sites if that's what you're looking for.
HOWEVER, The photographs do not reflect what the apartment actually looks like. The lounge room did not have all the inviting decor and amenities it is depicted to have (there is no rug, no plants, no television, no beautiful cushion covers, no table top decorations) - it was pretty much just a bare space with a cord sticking out of the wall where the tv was supposed to be with a couch and mismatched cushions.
The oven was also not able to used, as it required some electrical switch to be turned on before it was operational. This information was not accessible to me and I was not able to use the oven or stove during my stay. I ended up having to throw out food that I had no way of heating up on my last night in the flat. One of the A/Cs did not work.
The flat is a no frills option if you are looking to stay for a couple nights in Athens. Nothing special.