We stayed 6 days in the 4th floor Hera apt. The place looked exactly like the photos. 5 bedrooms, 4 bathrooms (2 en suite). Big living room, cozy breakfast nook, large terrace with a table for 6. Great radiator heating, and an AC in each room. Washer and dryer in the apartment. Very clean, very modern, very nice.
The kitchen has an oven, range, microwave, espresso machine, electric kettle, regrigerator and large freezer. Lots of plates and mugs, adequate cutlery, too few bowls and pans.
The location is good. Quiet street, not in the noisy center of town. 5 min walk to the presidential residence, 10 min to parliament and Syntagma square, 20 min to Acropolis, 5 min from supermarket.
There was no need for communication with the host. The one time we asked for something (one additional small travel bottle of shower gel), we were told by Eva that this wouldn't be provided because they "do not provide hotel services". Unfortunate.
Highly recommended for groups of 6-10 people.