We really enjoyed our stay at Frances' flat. It's in a perfect location in Montmarte, near to shops, restaurants, transit - and everything you really need. Frances was a great host, communicated really well with us and check-in was smooth and straightforward.
The only thing I'd note is that the main bedroom does not have a closet (the smaller bedroom does), so it could be a slight inconvenience if you're staying for more than a few days and want to unpack. Other than that, our stay was comfortable.