We arrived at 1am so the streets were deserted and the walk up to the apartment was a bit scary since the stairwell and walls were older with graffiti inside. However once inside the flat, it's as if we were in a different world.
The flat was spacious and clean, had all the amenities we could ask for, and was in a prime location. We never used the train or Uber and just walked everywhere, including Notre Dam, The Lourve, Sainte Chappell, Arch De Triomph. There were tons of restaurants in the area and it seemed like everyone spoke English in the neighborhood.
Even though there's a lot of action where we were at, John's apartment was on a quiet street so it was easy to get rest after a long day of sight seeing.
Check in and check out was a breeze. Actually my best check in experience in Europe since we had all the instructions sent to us in advance and could check in at our own leisure, instead of having to schedule time with anyone.
Note, the stairs are a bit steep, so FYI for travelers with mobility issues. For us, we had no problems here and wouldn't hesitate to stay again.
Thanks for everything!