Our short holiday in Paris was great, the apartment it's really in a great area, small but has everything you need.
Hiroko and her husband are great, very friendly and helpful.
The apartment can host 3 people, but it's quite small, better for a couple. If you have a big luggage remember that there is no elevator! I had to carry my girlfriend and mine luggages for 5 floors, but it's quite common in Paris.