The three things that are so precious about this place: location, cleanliness and hostess' response when needed.
This place is so close to many tourist attractions -- within 10 minutes walk, which is priceless!
There is also all you need for food as close as it gets: groceries store, great bakery store, couple of cafes, restaurants -- for anybody's taste. And the food is as great in this neighborhood, as in most of France.
The flat is very clean and indeed modern and new, in this historic area. Especially in the aspects I cared most about: toilet, shower and wifi. All worked, as expected and even better.
I liked my stay at this flat very much and will recommend it to anybody who would want to go to Paris and feel it like at home.
Most importantly, I personally plan to come back and stay at Bea's place one more time!