We stayed in the apartment for a weekend and made good use of the excellent location. Almost anything one could wish to explore in Paris can be reached by walking. As others have mentioned before it is quite small, however we were in Paris to explore the city and not to hang out in the apartment.
Last but not least, anytime we messaged the hosts, we immediately received responses, that were both helpful and kind.
We recommend the apartment for anyone simply looking for a place in Paris to sleep and explore the city.