We stayed with two kids and grandparents and loved it! It’s spacious for being in central Paris, and amazingly quiet and secure. It’s on the 5th floor but the lift was working perfectly the whole time so it was not a problem at all.
Location is the most convenience we could imagine. There are many great restaurants, patisseries, boucheries, fromageries in the area and a Franprix grocery shop next door. Chateau d’Eau station is two blocks away. Amazing stay, would consider staying again definitely.