Wow - the view is extraordinary! Even better than the photos suggest. This is a very cute apartment and you might not want to leave to go play tourist: you can just sit at the window and look out and see Notre Dame, Eiffel tower, Pantheon, the Seine, people watch.
There are 4 flights of stairs -- but well worth it for the view.
Antoine was very thoughtful and great at communicating.
I will definitely stay here again next time I am in Paris.