This place was very stylish, clean and the location is great. Kike has put some of his recommendations for sightseeing/food... And they were great, I only wish I had more time to go through them.
One thing that not everyone will like is the fact that the apartment is on the top floor and the stairs are quite steep. It was a non issue for me, but it could be for families with small children.
I would definitely recommend this place. And if/when I come back to Brussels I'll try to stay again :)