The bedroom is good: close to the metro, 15 minutes away to the city centre, close to the northern bus station, surrounded by a vibrant neighbourhood. Leo did everything in his hand to make my stay comfortable.
The only detail is a lingering smell in the bedroom – cigarette smoke? humidity? – that is not strong but a bit annoying. I left the window open all the time, but I guess in winter might be much more problematic. Apart from that, the flat is a good base to go around Brussels.