Steve’s apartment was great for our stay in Athens. It was located very close to the train for arriving and leaving (9 euros to/from airport), and to lots of restaurants and the bazaars. The Acropolis was about a 20-25 minute walk. It was clean and had a lot of kitchen appliances and dishes if you are interested in cooking. Check-in and check-out were both smooth, and Steve provided lots of good information during our stay. The area was very safe.
I would only note that since the restaurants were serving to only outside tables (no indoor dining at the time of writing this), it was loud outside of the apartment until 1-2am. I had to work remotely until those hours, so it was fine, but something to note if you have to get up early or a light sleeper.