The apartment is really well located, the metro is really nearby and you have a lot of places to eat around. You can walk to the Louvre, Tuileries etc...
The shower is quite small and the third room it's not fit for a claustrophobic person. But the main room and the sofa-bed at the living room were really comfortable.
We had a small issue with the shower leaking on the downstairs neighbours, so the last day and a half we weren't able to shower and Nicolas wasn't at all helpful :(
I wouldn't mind going back to the apartment if the owner was a little bit more caring with the guests.