The flat is in a wonderful location--Petralona is beautiful and the flat is just a short walk from the Acropolis and other districts in Athens. There's also a small supermarket a 3- or 4-minute walk away.
Liroy and Tal have clearly put a huge amount of effort into the flat. It's well designed, well equipped and very spacious. They were also wonderful hosts! They provided lots of information about things to see and do (one of our favourites was Petralona's farmers' market on Fridays!) and were so quick to respond to messages.
All in all, we can't recommend it highly enough!