Excellent base for exploring athens, about 10-15 minutes walk into the centre with closer restaurants if you didn't want to go that far. There is off street parking which is amazing for being so central and meant we didnt have to worry.
Manos was very responsive and flexible with meeting us for check in. He works in the (incredible) pastry/sweet shop across the street. We had a short stay and lots to pack in so only made it there on the last evening but the desserts are incredible and we brought a box of Turkish delights home!
Back to the apartment itself we could comfortably have had another 2 adults or 3 children staying with us there, the place was very big and comfortable with good air con (it has a night mode so is quiet and the light goes off which was great for sleeping). Quiet neighbourhood generally we weren't woken by cars etc. Shower/wet room is good and modern. The whole place was very clean and comfortable. Would definitely recommend for a stay in Athens!