We got to Mike's home at 3pm. Mike wasn't around but his friend Vasily warmly gave us a tour around the lively neighbourhoods. There're countless nice bars and cafes around. And the Acropolis is pretty much within the walking distance. The flat itself is awesome. Nice and tidy. Mike kindly prepared us with some free fresh food in the fridge. There's also an espresso machine in the kitchen, but we didn't bother using it because the best coffee in Athen is pretty much downstairs!
Anyway we'd recommend anyone who wants to travel Athen to stay in Mike's place.