We've had an excellent stay with Sebastien. His flat is indeed very close to many bus stops, it's 5 min to the UN and around 5-10 to the city centre, by walking around 20 mins.
His apartment was clean and well organised, the room was nice, the bed was comfortable (it's listed as a sofa).
He offered shelves in his fridge and cupboard for use and helped finding our way whenever we needed it.
I would recommend choosing his BnB!