I enjoyed my stay at Nicolas' flat thoroughly, and felt very much at home. It is a quintessentially Parisian home, with a very friendly and helpful host. Nicolas is exemplary in providing information about the neighbourhood and Paris in general. If you follow his detailed instructions, access to the flat is very easy. Rive Gauche is arguably the most charming part of Paris, and the Rue de Seine is pretty much its heart. I cannot recommend this property highly enough. Thank you for everything, dear Nicolas!