This studio apt suited my needs perfectly and Marie was so helpful when needed and gave me great tips about the area and what to watch out for. I was looking for a true Parisian experience and got it at this great central location where you could do lots of walking or use the metro. It was nice being able to do a little grocery shopping in the area for some quick snacks in the AM/evening, but there's so much to explore in Paris and never enough time.
TIP 1: If you have heavy luggage and are taking metro back to the airport, I suggest going down in advance without your luggage to buy your ticket and it will also ensure you don't get lost with your luggage as there are lots of stairs, especially if you are going to CDG airport. It will save the hassle of incorrect directions.
The metro is so well connected to this location that you can just use the fountain as your "geiger-counter" and everyone knows that landmark along with Notre Dame.
TIP 2: If you have limited time and find it's easy to get "lost" on the streets while walking, it was worth getting "Travel Wifi" to help google directions or look up information; then you don't need to unlock your phone as it gives you unlimited data; and you can use whatsapp or Facebook to message or call people, including Marie!