My stay in Paris was wonderful. The flat is cute and holds everything you need for two people looking to spend most of the day exploring. The place was clean and in a very quiet neighborhood, and the location is very easy to get anywhere in the city easily!
The host was nice enough to let us check-in early, but the concierge was 45 minutes late so I would be sure to confirm timing so that your trip isn't held up like ours was. The host also offered a promo code for a bag drop off service on our last day which was really great so we could wander the city without our luggage (which I would recommend doing instead of early check-in, that way you are not waiting on anyone). Overall the communication was pretty quick on their end, and they did their best to accommodate all of our needs. I would definitely stay here again.