This absolutely an amazing place. It's a spacious apartment at the top floor of a 3 story building. It's clean and quit. The neighborhood is just outside of the city center, but very well connected by public transport. By metro it only takes about 10 minutes. Also there are some grocery shops and restaurant very close to the apartment. Also very nice is that the apartment comes with a private parking place.
Evelyne, Michael and their little boy Tristan are excellent hosts, they really made us feel welcome. I warmly recommend to stay at their apartment, as it's a perfect place to stay in Brussels.