Plusses;
The apartment is spacious, with a huge common area of sitting room, kitchen and dining area. Bedrooms are of a reasonable size, beds and pillows are very comfortable. The bathrooms both have large walk-in showers (but see later) one with two sinks the other with one. The flat is very quiet (especially for this area of Paris) with only the occasional deep rumble of the underground, and the adjacent maternelle school (and then only between about 0800 and 0830). Security is excellent, with two security coded doors, plus two locked doors. Situation is excellent for so much of what Paris offers. There is a tube stop just outside the front door and parking nearby (though very expensive). Plenty of restaurants and shops very close by.
Negatives;
The en-suite bathroom has no heater so if you like your bedroom cold the bathroom will be similar (and vice versa). The flat was not as clean as others we have rented, and the bed-linens and towels could do with being updated.
Issues;
We had two injuries while there. One of our party went to move a reading lamp into a better position, and cut her hand on exposed glass as the lamp had clearly been broken by an earlier renter. Also on the first morning as my wife went to shower, the Rain-Shower head came off as she switched the tap on. It landed on her head and though bruised she was not cut/badly injured as could have happened. I emailed Cedric later that morning with the info, and she demanded photos of the shower. We went back to the flat in the afternoon, and took appropriate photos and sent them. In the following three days before we left - no repair and, even worse, no contact from Cedric whatsoever, let alone an enquiry into Jill's health.
Cedric also uses/used an agency service for check-in. We found them less than helpful. We should say that we were delayed by traffic and arrived some 45 mins later than initially planned, though kept in touch with the agency en-route. But they suggested it would take us just over an hour from CDG airport - in fact it took two and a half hours. The 'greeter' then gave a deadline, saying we would not have access after 6pm, and so one of our party had to jump out of the car and run to the flat to get there in time. It was highly stressful, and a warning for anyone driving into Paris to this flat.
Would we stay again? In the area, definitely. In this flat, no. For £300 per night we would expect better.