It is a great catch. Good appartment with full equipped kitchen, toilet, living room and sleeping room.
You will have a great view over Brussels (loved to wake up and see the Attomium). The building was on works but never heard a sound of it.
The location is perfect, either for a business trip (almost within the EU "cartier") or for a leisure experience. It has a great public transport offer (bus in 2 mins walking and Metro in 6 mins walking).
The communication was great and really friendly, both on the checkin and checkout.
I fully recommend it.