My 12 years old daughter and I stayed in the apartment for 10 nights. It was the second and last apartment we stayed in, during our vacation in Paris.
We liked this place better than the first one, it was bigger and in a better neighborhood just at the same price.
The place is well aquipt, we didn't use the washing machine and the dishwasher, but it was a nice option to have appliences.
The view from the balcony in breath taking, I was personally too scared to be sat there, and when we left the windows open it was a bit noisy form the traffic below.
The only dawn side I can think of in this place, is the 130 steps that one needs to climb to reach it.
I felt it intensely when I forgot to buy bread and couldn't bring myself to climb it back again and when we checked out at night and I had to drag two suitcases of 20 kilos each, dawn the stairs.
The communication with the host was good, he helped in every problem that needed his attention.
The overall experience was good, we kind of got used to live our Parisian life in this apartment and we don't see any reason why not recommending others to stay there too.