The host company is responsive , the place is clean and spacious, with a single large room with high ceiling and wide windows.
The flat has only the most basic furniture / decorations, and misses a few items (carpet..) that made it look nicer in the photos.
The building is under renovation and is not finished as of my stay / review, with open ceilings, cables, etc. meaning you walk through a construction site before entering the flat. The flat itself still has a little touch up to go, with dangling cables on hold in the ceilings as well.
The location was good, in the less touristic part of the city, which was what I was looking for, and very close to a subway station (few dozens meters), 2/3 stops from the city center.