Katia and Thomas's apartment is excellent for a short stay in Paris, I would strongly recommend it!
Pros:
+ It was spotless clean and well decorated.
+ The bed was very comfortable and the shower had a great pressure and temperature.
+ The check in was extremely easy with the key box, and the communication with Katia and Thomas was very fluid and easy.
+ Great location, close to lots of shops, metro and touristic locations at walking distance.
Cons:
- Just in case you're a light sleeper, take in mind that is in the ground floor facing the street.