The apartment in general is nice, more spacious than normal for Paris, clean, with everything you need to spend a few days in Paris.
The location is very good but I would not recommend it for someone who wants to rest, we are young and we put up with the noise but it can be very very noisy.
In cold weather consider heating the bathroom because it is freezing, (check that the control has batteries).
Last and most important thing; in the rules at the beginning there is a recommendation not to forget the key in the door, inside the apartment, which we ignored because we did not think it would happen to us, BUT IT HAPPENED TO US, for some reason we could not open the door from the inside with the handle and we used the key, because of the hurry it was not removed and remained inside, then we realized that if it was in the rules it sure happens a lot, so be very careful with that, you will avoid paying 100€ extra!