I booked this accommodation for my parents and myself for a short break in Paris. The check-in time is 3-9pm , our flight arrived at 7:45pm so we just managed to check in on time. Camilo and Mairena were prepared to stay an extra 30 mins to wait for our arrival, which was nice. Just be aware if you may check in outside of the check in time to liaise with the host beforehand. An additional fee may be charged because they may have to organise someone to let you in.
The apartment was modern and clean. There was an old drain smell in the bathroom but it doesn't travel to the living room. After opening the window to air it it was fine. The lift to the apartment is very Parisien style, i.e. very small. So if there are a few of you and have large luggage, you may need to do a few trips, which I had no problems with. Mairena and Camilo were prompt to answer when we asked for suggestions, and sent us a list of places to eat and drink around the area that was handy.
The apartment is well located, only 5 mins walk to 2 metro stations. It takes about 40 mins to get to central Paris.
Overall it was a nice stay and I would recommend it for a short break in Paris.