MAS residence is a very clean and convenient place to stay while in Brussels. We were accommodated courteously even if we checked-in a bit later than expected. Paul from the concierge even offered to help order food delivery for us as we already arrived close to midnight and most restaurant kitchens were closed. Beds were comfy and toilets were very clean. Our overall experience was great and I'd recommend MAS residence as a great place to stay if you wish to explore Brussels.