Communication with Cedric was excellent. He was there to great us and did a thorough walk-through of the unit. The unit was very clean, he provided bottled water, coffee pods, a bottle of wine, small snacks. All of this was a nice, thoughtful touch.
The unit itself is very secure and as others have noted there are double windows which greatly reduce the outside noise, which can be loud at times. After all it's in the middle of a lively intersection. The unit is very central to the subway (Metro) and to groceries, coffee shops, boulangeries, restaurants, etc.
We went to two of Cedric's recommended places, the best of which was Brasserie Dubillot, which we went to twice and is within walking distance.
Thank you Cedric for being a most excellent host! Merci!