Frank is an amazing host and his place is at a perfect location, very clean and has all the basic amenities as described in the listing. The apartment is near a small supermarket, the nearest metro station is Hotel de Ville and Chatelet, Le Halle stations are very near too, so one is well connected to bus and metro transportation. Lots of shops and restaurants around to keep one full.
Frank is a cordial person, very informative and responds to every query you might have. I had a fantastic experience dealing with Frank and can say that I have found a good friend in him.
Just know that the building does not have a lift, so you'll have to climb 99 stairs to digest all the wonderful French food you will have had. :-)