Unfortunately, the title "Entire Flat with rooftop" did not match at all with description criteria.
Actually I had to share the flat with another couple (daughter of the owner).
My bedroom on the rooftop looked like an aquarium without any windows and not cozy at all with aggressive lights.
My "living room" was comparable as a Sauna with 37°C outside and no A/C inside the room.
My kitchen was actually a BBQ area (churrasqueira) with no Gaz, no microwave and nowhere to cook you meal. It looks like a summer kitchen only for BBQ.
Both washing machine & outside shower were out of order.
Finally the Wi-Fi signal was not strong enough to be able to have correct connection in my room neither in my living room.
I would not recommend you to stay at Myriam's house unless you travel with other criteria than above mentioned.