We enjoyed staying at Place Etienne Pernet. The apartment was clean and comfortable and it was nice to have the Felix Faure metro stop so close by. The view of the Eiffel Tower was a big hit with our kids! There are numerous boulangeries, patisseries, produce markets, and restaurants just minutes away. We would definitely stay again.
The walls are extremely thin and we had noisy neighbors a couple of nights. The appliances are a bit mysterious to operate and there was no guide/intro book to explain them. However, Cédric was extremely quick to answer our texts. If you're planning to cook in at all, be aware that the cupboards are bare--no salt, pepper, sugar, cooking oil, tea, etc., and not much in the way of cookware except a few pans. If you plan to eat out the entire time, this won't be an issue.