Tia was very helpful and communicative. She made sure we had the information about getting to/in the apartment, kept us updated about the bus/metro strike in Athens so we could make alternative arrangements to get to the airport.
Overall, a very clean and well maintained self service apartment with clear instructions everywhere. The room was really nice, and we were provides with maps and pamphlets for things to do in Athens.
I would highly recommend staying here if you're okay with a shared bathroom between 3 rooms. You need to plan with some buffer in case it is occupied.