My boyfriend and I loved staying at Antoine's place! Check in was easy with his friends at Hotel Agora (right next door to the room). The location is perfect - it's a 3 minute walk from the train station and a 5 minute walk (or less!) from the Grand Place - but it's also on a side street so it's not very noisy. The room was clean, and the bathroom looked newly remodeled. As others have commented, there were steep, narrow stairs up to our room, so if you have heavy or large luggage it may be a little bit difficult to maneuver yourself.
Overall, we had a wonderful stay and would definitely stay again! :)