Numa's place was a great find. The decoration is lovely and the place really gives you a feel for how people live in Paris. Location-wise it is very close to a metro station so that all the grand monuments are within reach, but many nice streets and glorious buildings (such as the Pantheon) are at walking distance.
Check-in and check-out went without a hitch and Numa was very communicative and generous during our stay.
In short, everything was beautiful!