Walking distance to major sites. The building across the street is being monitored 24/7 to prevent terror attack (that's what the police with the auto rifles in front of the building told us)
The place is poorly maintained (pipes leaking, loose screws/nails sticking out everywhere - you can easily injure yourself, large items not secured to the wall - a ladder hit me in the head as it fell when I came out of the shower)
My elderly aunt went to open the shade (the plastic ones you pull with a cord) and the whole thing fell on her head. When I informed the host about this, he sent me a request for a whopping 300 euros worth of damages. He also wanted to send someone into the apt while we were gone.
We left immediately in fear he would try to charge us for other renovations he was planning and since this agency seemed to have no issue entering while we were gone, we didn't trust that our belongings were safe either.
I'd feel safer sleeping under the construction area of Notre Dame.