The location is really good, the flat is on the fifth floor, it was cosy and tidy, just the bathroom was a little bit too small ,but still enough for me. The host Romain is an easy-going person, I didn't meet him though. We communicated well through the airbnb. He will give you all the details.
The check in and check out time are flexible.In total, the flat is worth for the price, will definitely recommend to other people and will book it again if I travel to Paris again.