The house was very cozy and warm and felt like home. It was fully equipped with everything we could possibly need. Also, it was very close to the metro station and there were lots of nice places in the area where you could eat or have a drink. There were also some drawbacks such as the warm water was not enough for 3 people, the siphon was always flooding and the apartment was a bit dusty. However, we had a very pleasant stay and we had such a good time in Paris.
Finally, if we ever came back to Paris we would definitely choose Cathy's apartment again, she was very helpful and available for any question. We stayed there for one week and she was always texting us to see how we were doing and if we needed anything.
Thanks for all Cathy