It is not specifically the fault of the property, but generally - that a weekday night in London costs 150 Gbp for a rather basic room, without breakfast, is quite astonishing. The room is the kind of rather simple BnB room that cost about half that sum rather recently, ok if slightly wonky in details (uneven floor, shower base broken, window opening a puzzle that took several minutes to figure out). It is somewhat noisy but central London this is to be expected. The floors and doors throughout the property are very noisy.
One does not need the room cleaned (with towels changed) during a 2-night stay, that's an unnecessary expense, charged on the guest.