We had a good stay at Maria's apartment. It is like in the photos, quite cozy and comfortable, perfectly clean. Communication with Maria was very fast and easy - thanks a lot for being so caring about your visitors :)
Also a big plus was the presence of basic things like sugar, salt, coffee, olive oil, shampoo - it's very nice to avoid buying all these yourself for a short stay. Everything was thought-through.
We also appreciated the guide to the apartment and Athens that Maria put together - it has plenty of useful information.
As to the things that need to be kept in mind by other travellers:
- the apartment is not far from a busy street, so at night the sound of cars can be heard - could be a problem for light sleepers, we had to close the window at night due to that;
- the internet is very slow, so if you plan to watch netflix on your laptop or have business calls - that would be problematic;
- the bed was kinda squeaky (but comfortable, nevertheless!);
- the dishwasher was out of order, but I am sure that's a temporary thing.
Overall it's a nice apartment, so if you don't mind a bit of noise, or usually sleep with the windows closed - I surely recommend it.