I loved staying in this place. It was clean. Spotless. We felt as if we were the first people ever used the place. The location is good. Short distance to tube and a bus stop next to the house. Although it is in a big house - it was very quiet. Never heard any noise of neighbors.
Nicolas was connected and answered immediately on every mail or message. We paid the extra fee on towels and they were very good.
Sometimes the building entrance was not very clean and there was laundry hanging on the walls near the flat entrance. It did not bother us but it might interfere if you are very fussy. For us what mattered was that the apartment was so very beautiful.