Everything concernig the place of the accomodation is really perfect, it is in the centre of Latin Quarter so you can have a very pleasant walk to the Seine, Notre Dame, Pantheon and it is not far to get the Eiffel Tower by walk too. There are many very nice small pubs and cafées in the surrounding area and the house itself is very near to the public transportation (a bus stop and a metro station Cardinal Lemoine are 2 minuts by walk, a metro station Jussieu and other bus stop are 5-7 minuts by walk too).
Grégoire is a very nice, friendly and helpful host speaking perfectly English.
The house itself is very nice and romantic looking - a typical and old fashioned French style from 19th century but having an elevator, what is absolutely perfect, especially for people not loving stairs and for disabled too. The flat is also old fashioned and becuase of it romantic looking (even the plates are antiquities!), the room is very spacy and the balcony with the view to Paris is something absolutely fantastic!!!
The price is very very reasonable for such a good and very romantic location!
I can fully recommend the acomodation for any single tourist wanting to feel "the real spirit of Paris" and simply by walk discover the best known places of interests in the centre of Paris. Thank to good access to public transport you can also discover places like La Defence, Zoo park, Chateau de Vincenes or even Versailles. On my opinion the accomdation is perfect both for one - two nights stay and for longer (a week or more) stayings.