What can I say about this flat that hasn't already been said? Staying in this location made us feel like we were in the Paris of the 19th century. It was like a little village, but within walking distance of Notre Dame.
The flat is small, but had everything we needed to be comfortable, and we could cook or own meals when we wanted to. The boulanger at the corner had incredible desserts, and everywhere we walked was just beautiful. The metro station is a two minute walk, but the street the flat is located on is very quiet.
We never met Mina, but her friend David helped us find the flat, and explained everything to us. Communication was very easy, and the whole process went smoothly from start to finish. If you want something quieter, and much more romantic, avoid Champs Elysees, and stay with Mina instead.