My husband and I decided to take a trip to Paris and chose Melissa's Airbnb to stay the week. All I can do is echo all of the other reviews here: it is a lovely little place to be right in the center of it all! Clean, commodious and yet cosy, Melissa had everything a traveler would need and then some. Check in / out was a breeze and Melissa's communication was always fast and friendly. She had great advice too. The location has some major strong points, including being right next to a Metro / RER stop that gets both the RER B (direct to the CDG airport) and the RER C (daytrip to Versailles anyone?) We were able to reach many major sites very quickly that way.
Ok so, yes, it is very loud outside at night. I recommend a pair of earplugs and an eye mask for a truly restful sleep. I felt this cannot count against the place itself because Melissa simply cannot help the nature of the street and we were also there during a holiday week, which may have upped the noise factor. There are so many other upshots to the location (you can literally hear the bells of Notre Dame ringing during the day?! Come on that is AWESOME) that I felt it a worthy sacrifice. Be advised of this, but don't let that scare you away!