The apartment is in a great location. Several key landmarks are only a 30 minute walk away and there are more than a dozen restaurants within 3 blocks (on Rue Montorguile). We were very pleasantly surprised and if location is a top priority for you, you will be very happy here.
The communication with Merveil was also a highlight. We had one issue during our stay that they quickly responded to.
The 4 star rating is due to the layout of the apartment. It is really a 3 bedroom with a very small, pocket loft that only fits kids. So, 8 adults should look elsewhere. Since we were 4 adults and 4 kids, we were okay. Similarly, the bathroom layout is a little odd. And the AC really only covers have of the apartment.
On the positive side, it was fully furnished and everything was in good working order. It was quiet at night. We appreciated the welcome wine bottle and the coffee pods.