Contacted a few agencies for rental in Paris and ultimately decided to do 3 nights apartment and 4 hotel. From the first call to the follow up after rental Haven in Paris was so efficient and provided so much good information. Their US office always answers phone or calls right back. They have a nice collection of apartments (not 100's) and they know the properties. In most cases they are the exclusive agency booking for the apartment which reduces double bookings etc. In our case they had a "hole" in the week since they allow any day arrivals and we took the 3 nights in an apartment literally steps from Place des Vosges. The greeter communicated before our arrival and was there to meet us and let us leave our bags until it was cleaned. The apartment was spotless when we returned. We enjoyed our stay and really had no need to get in touch with the greeter but I am sure she was available to us. I highly recommend this rental agency for your stay in Paris.