This is probably the best place to stay in Brussels! Great location, wonderful and big apartment, close to everything (including the EU institutions), nice neighborhood with many bars, restaurants, jazz, groceries...
The apartment itself is cozy and wonderfully furnitured. Your hosts and everybody else who lives in the house and whom you might meet in the entrace hall is very friendly and kind. Communications are always quick and very easy.
I hope I can come back soon again.