Tony's apartment is truly in the heart of Paris. If you don't want to have to make a trek back home after a day visiting the Louvre or Notre Dame then this is the place for you. The architecture also makes you feel like you are staying in a building that predates your great-great-grandfather which, if you're a history buff like me, is pretty cool.
This place isn't for you if you want to linger over breakfast and have a slow start to the day, it's not really set up for spending the day in, it's set up for sleeping and bathing and storing your luggage in and then not wasting a moment of being in Paris!
It's also very close to the two restaurants that impressed me the most during our trip, Auberge Nicolas Flamel (in the home of the famous alchemist) and Le 404 (the most beautiful delicious Morrocan restaurant).