Highly recommend a stay at this apartment. Location wise it was about a 10- 15 minute walk to Monastiraki Square ( depending on your pace ) and a scenic walk past the Ancient Agora with views of the Acropolis and lovely cafes and restaurants. In the other direction you are less than 10 mins walk from the Gazi district. It is a 5 min walk to Thissio Station which is 20 mins ( same line) from Piraeus station if you are heading to the port.
The actual apartment itself has been renovated and has comfortable modern furniture. Some nice touches are the coffee machine and pods ,high quality shampoo and soaps, and washing machine.