We stayed here as a group of 12 on a hen do, the apartment was a great size with lots of character.
Mathilde the host was super helpful and we were able to leave luggage before and after checking in and out which was great.
The location was perfect, 5-10 minute walk to the nearest train or metro, walking distance to notre dame etc
The square was lively and loud if the windows open on lower floors but this was fine for us! Felt like a safe area to stay and far enough off the tourist route to feel like proper Paris
Would definitely recommend!