The most important items were the amazing location and great communication. For a quick stay in Paris as we had 36 hours), it ticked all the boxes.
As described it is literally 80 narrow steps to get up to & the instructions (and neighbours) require to keep all windows shut. In summer this makes it very hot, one small fan is a little bit token so it can be uncomfortable.
It is clear no-one lives here, as it is a bit sterile but it is very clean and very functional. It is good value for money but 1-2 days is probably enough especially in summer.
This place will perfectly suit some & definitely not others.