Great apartment in a perfect location. As close to the Eiffel tower as you can get.
A big issue though was that communication with the host wasn't great. A couple examples:
The password for the wifi was located nowhere in the unit and the host never replied when I messaged asking for the password. We only managed to get internet access right before we checked out.
Similarly, we booked a crib for our baby. When the crib hadn't arrived by 730pm in the evening, which is after our baby's bedtime, we messaged the host and received no reply. We almost booked a room at a nearby hotel in a panic, due to not having anywhere safe in the apartment for our baby to sleep. Fortunately we were able to find the after hours security person in the building, who located the crib later in the evening.
These issues caused a ton of anxiety, which could have easily been avoided if the host just replied to messages.