Fanny's apartment is in a great location to see all the sites around Notre Dame and is very central to transport with Saint Michel station just meters away (including the RER B line to the airport).
The apartment is small but comfortable and was fine for relaxing in between site seeing and grabbing food. The WiFi was also good.
There is no elevator so you will need to carry bags up a few flights of stairs but that is common in Paris.
Fanny was also very responsive to messages, thanks!