The real advantage of the apartment is the location; many places of interests nearby, bars, restaurants, nightclubs, metro stations, 5min away by feet! This was very convenient.
Also, the host was very friendly and flexible regarding our check-in, much appreciated.
However, there is a big issue with this apartment : the very bad smell from the bathroom! Since there is no real big windows to air out the place, the smell couldn't disappear. We slept in the living room because we were 4 people, and this was not confortable since the smell remained in the whole apartment. This is an important thing to take care about before renting the apartment I think.
We enjoyed our stay anyway!