This apartment is exceptionally well located, right next to the Chatelet - Les Halles train station, which has Metro and RER service. You are less than five minutes from boulangeries and serviceable restaurants.
Jacques is quite good about giving directions to the flat from the Metro stop and the Internet connection is super fast (100 / 100 Mbps).
We had three non-romantically involved guests, so we used all three beds. In this arrangement things were rather cozy. There isn’t much space to stretch out and lounge, and it was an orchestration in the morning to make room for each other to get from the beds to the kitchen and the bathroom. If you only plan to sleep in the room, it should be fine, but since we wanted to wind down in the evening, it was a little harder to relax.
The hot water works great and there’s an elevator to the room, so no lugging our stuff up the stairs.