One of the best option if you are planning to visit major attractions in the city like grand place, manneken pis, etc as it is next to the major attractions and at walkable distance. Even placed at walkable distance from Central station which connects to various attractions by all modes of transport.
Room was clean will maintained, they provide basic bathroom essentials, they have a shared kitchen option, Antoine is easily reachable for any kind of communications.
Only point to consider is unavailability of lift in the building if u r not willing to take the stairs, however, this was not a problem for us at all.