I love this particular spot. It is on the edge of the Marais and the shopping walk streets around Les Halles and the Pompidou. There are 3 very close metro stations so you have ez access to anywhere.
The apartment was very clean. Check-in was simple. The lock is timed and they don't allow early check-in so take that into account.
It was very compact and the room amenities were lean, but this matches the very reasonable price.
The host is readily available and answered our questions quickly. Overall great place to stay.