Guest Apartment Services owns about 60 apartments, 90 percent of them on the Ile Saint-Louis. As you can tell from the posts, we were delighted with the apartment, the island, and the service provided by our hosts.
I'd be happy to answer any questions. But the answers may be delayed since first priority is continuing to enjoy the next month exploring more of Europe.
P.S. For a tribute to Hugh who died last year, see http://bit.ly/16aUz4x