It was extremely easy to self-check in with precide photo-supported instructions by Tegea. She was also fast responding to further questions of mine. I was given a set of rules and a times that I can contact the host and not when not to contact (weekends not). The place is gorgeous almost 360 fish eye view of Athens city. It can be cold in winter and the view hazy or with rain but even winter in Greece has many sunny days or rain then rainbow days. I would recommend it for a week's stay to get a glimpse of all of Athens especially in spring/summer/autumn months where its not so rainy. I stayed in winter, it was hard but even so I enjoyed my stay. The place also feels very safe and has a lift and then some stairs, the permanent residents of the building are friendly. Shops/cafes/ATM/pharmacy/supermarket alla extremely near (50 meters walk) plus bus stations/taxis. I would definetally recommend it to someone who doesnt know athens and wants to explore the city from above views too.