It you want a spectacular of Paris then you won't be disappointed.
The lounge and bathroom windows overlook Paris to the Northwest .
The bedroom window is facing The Sacre Coeur and when I say facing, it's next to it !
You can see the Eiffel Tower in the distant also.
If you have watched the television drama "Killing Eve", then this block will remind you of Villanelle's apartment in Montmartre although its alot smaller.
If you are looking to buy some provisions then turn left out the block and go down the steps where there are many shops.
Our favourite Cafè/ bar is Le Refuge facing Lamarck Metro station on Rue Lamarck. It has lovely drinks and food and is mainly used by the French who are very friendly and even recognised us when we walked in from our last holiday and poured us a drink without asking .
Christian's apartment can sometimes be seen in photos as the "Sinking Building Of Martmartre"...it's not sinking by the way.
The apartment is on the 4th floor with a quaint but small lift to the floor.
All in all, I would highly recommend this apartment.