This apt appears to have been recently renovated. It is very clean. The appliances, kitchenware, bedding, etc. is all very new and clean. When you arrive at the address, be advised that the staircase in the center of the street represents the address and the apt is in a building on the top of these steps.
This listing would be a good choice for a couple or even a couple with a child. It is close to many of the major attractions of Athens and if an UBER is desired the rate will not be more than a few euros to anywhere you would want to go in the main area of Athens.
Polina is very responsive and always available with a helpful answer to any question you might have.