Beautiful apartment in a great location in Paris. Very convenient for transports, shops, restaurants etc.. Mathieu replied to us very quickly when we needed something and our stay went smoothly!
The only negative I would point out is the check out time, which is at 10am and earlier than usual as most places the checkout is at 11am-12pm. We had to be up quite early on the last day to pack, have breakfast and tidy up the flat before we left and it was a bit rushed.