I stayed here for three weeks while visiting the Université libre de Bruxelles. It’s an amazing location on Coudenberg/ Mont des Arts, in the heart of the city and close to all sorts of public transit (Gare Centrale, metro, buses). The apartment is beautifully decorated, very comfortable, and has all of the amenities you might need. Only unusual thing is the toilet is in a small room outside the main apartment, but it’s private and not a big issue. As the hosts mentioned, there is a (very) small elevator for three floors plus 2 additional narrow flights to the apartment. I enjoyed walking up and down the full staircase, it was part of the charm of the building, like a private old house. The windows in the apartment overlook a nice square and I often heard musicians singing/playing. Of course you’re close to all the museums and near the Grand Place and Royal Palace. Be sure to check out the art deco Old England building just up the street. It houses the MIM (Musée des instruments de musique) but also the restaurant on its rooftop has the best views in the city (plus the architecture is amazing). You can visit the museum (if so be sure to get the audio guide to hear the sound of each instrument), or you can simply visit the restaurant without paying admission. I really enjoyed my stay here, it was a highlight of my visit.