The apartment itself was very good – clean, great terrace with view of acropolis, overall well-equipped (though some tea and more coffee would have been nice), comfortable bed.
But the building is a mess – lots of mess on every floor, and the stairs were like an obstacle course – building/decorating debris all down them, landing windows missing their glass or any barriers so that one of them in particular was very dangerous. On New Year's Eve, when there was a massive party going on in the building, the lift jammed so that we were stuck in there for 1 hour. To be fair the hosts answered their phone immediately when we called them and told them people were on their way to get us out, but it wasn't a great experience!
Then a lot of noise from builders/cleaners very early every morning. So we didn't get much sleep over the 5 days we were here. As we say, the apartment itself is great, but the hosts need to work with the rest of the building to make it more suitable for visitors.