It was an enjoyable stay.
Sophia is a very welcoming host. She's met me at the flat, and she provided many helpful things, including coffee and some food for a first meal. Sophia also gave a lot of information about where to go and what places to visit.
The flat is located very comfortably. First, it's a 3-minute walk from the nearest metro station to get from the airport to the apartment using the metro, which is very convenient. Second, the city's center is two metro stations from the flat and is easily reachable on foot for those who prefer to walk.
I would highly recommend the place, and also I would revisit it in the future.