We very much enjoyed staying at Toni's apartment! The neighborhood felt safe and was only a 5-10 minute walk to the Market Place and tons of restaurants not to mention a Metro Station. The space was clean, well organized and had everything you might need for your trip and more. Even a full cooking set.
If you're going to Athens and you can handle a few stairs to get to your apartment door, then I would book Toni's place without hesitation.