Great location in the heart of Le Marais but off on a quiet side street so it wasn't too noisy. Close to lots of cool restaurants and the building was secure. We spent nearly every day out in Paris so we really only needed the AirBnB for sleeping and showering.
The bed was fine and there were fans to help with the heat, but no alternative, lighter bedding that we could find. Unfortunately the bathroom really needs some love. The toilet was quite dirty and both the sink and shower drains were clogged so they just slowly filled up when you ran the water. There was no garbage can for feminine hygiene products so we needed to take the one from the kitchen.
Overall, location was great, and it was totally fine for a couple of days, but I think next time we will opt for a hotel.