Location = very good, close to Grand Place (5 minutes on foot), De Brouckère metro station (10 minutes walking distance).
Elevator = small, for 1 person and a bag; yet still some stairs were on the way (from the entrance to the corridor, and from the corridor to the elevator). For big bags/baggage or baby trolleys not very convenient.
Towels = were clean as well as sheets/duvet.
Heating=worked, you need to increase the temperature on the thermostat which is in the room on the wall.
Noise = as this is really centre it was a bit loud till 2am at night, yet it was a week time, so on the weekends could be loud longer.
Host= was very accessible and communicative with very detailed description of the apartment and the key instructions.