This hotel is great if you need to spend a night in Athens between flights. The shuttle was on time and the appartement clean, with some attentions like coffee and wine. However it is not luxurious, nor in a prime location. It is functional and not expensive. It gets the job done.
I chose to stay there for a night because it offered a free shuttle 24h to the airport. The hotel is close to the airport but ot at a walkable distance from the center of Athens were many sites are.
Overall the hotel was good as a venue and offered clean room with basic facilities. However the biggest disadvantage is that is not offering regular transfers to the airport. In my case they offered at 8 or at 10 in the morning and I had to take a taxi and pay myself 25 euros to get to the airport at 9.15 that I wanted. Pity.
This is more of an apartment. It is very basic and a little drab. But it is extremely close to the airport and a great place to stay for an early flight. Limited eating options without a car. The Shuttle service was great. You might be limed on the number f luggage you have so check