The apartment is small but has everything that you need, and glorious high ceilings and windows. It is incredibly well situated in a central area, surrounded by restaurants and eateries and within walking distance of most of central Paris, also well located for public transport with bus stops and the subway within a few hundred meters.
An unexpected plus is how quiet the apartment is! Considering how centrally located you are, once the door is shut to the courtyard it is almost completely silent, unless anybody is moving stuff on the cobbled walkway.
I would say it is the perfect space for a couple, or a small family, four adults might be a bit of a squash though, especially as the ensuite is the only bathroom so anybody needing to use it has to walk through the main bedroom. The second bed is a sofa bed in the living area, which is fine for a couple of nights but as a long-term option maybe not so great.
One thing, there are no kitchen basics at all in the apartment, so you might want to bring a few sachets of salt and pepper, a couple of teabags, that sort of thing, with you. There are, however, two compact umbrellas in the cabinet beneath the TV, having got caught in a thunderstorm on our second evening and, travelling with hand luggage only, that meant everything was soaked! I wish we had found them sooner! 😆
In conclusion, for a few days in Paris, this place is perfect!