Very nice host and beautiful quarter with many great restaurants and a good bus connection to the city center or ULB just around the corner.
Dario is not the most eager to reply, but his brother Nico, who lives in the flat, is really nice and approachable.
Mind you that the flat is shared and only one room is rented out, so don't expect it to be a hotel.
My only critique is that the mattress pretty thin and worn out, I had trouble sleeping as it only provided little cushion from the slatted frame.