Simply perfect. Lou is excelent and helpful host, the apartment is big, clean, very well equiped and stylish, neighborhood is quiet, nice, with good shops and supermarkets nearby, public transport and it is close to city center, Flagey and nice parks like Cinquantenaire or Bois de la Cambre. I was staying longterm and worked from home, I never had issue with wifi and the apartment is quiet, you can't hear the neighbours. I had a great stay and I really recommend, Lou's apartment is a perfect place to stay in Brussels :)