I came here on a business trip, it is super close to the Megaron international conference centre. It's maybe 5 minutes walk with a little cluster of cafes on the way.
Dominic&Calliopes apartment is clean, bright and comfortable with a lovely balcony and the comfiest bed I found in Greece. Little things are all sorted for you, so there's no worries if you dont have time to get to the shops. If you do have spare time, it's a short walk to all the attractions in Athens, particularly Lycabettus hill (go up there at sunset for the most amazing view. Stay until the Acropolis lights up!)
I was greeted by Dominic, who is very welcoming and full of tips about the city. He really made me feel comfortable in the apartment. This was particularly nice as I was travelling alone. He is also great at responding to messages or questions. I would stay here again for sure :)