The room offered to us on arrival was not the one advertised in the photos. The room was the same size, but no tower views and with a small bed. To Clements credit, he replaced the bed with a larger one when we asked. The storage space (including in the bathroom and kitchen) was very good. The apartment complex is secure and the wifi was also good.
The listing is a sharehouse with 2 occupants living at the time of our stay. This is neither good or bad, but dramatically influences the feel of the visit so is important to know.
Also, the occupants are smokers and we could smell this in our room. The ad lists "smoking allowed", but this fact is also important for pending guests to know.

The location is OK for proximity to the tower, but not an exciting part of Paris. We used the Metro everyday to explore other areas - there is a metro stop 1-2 mins away.
Clement is nice and friendly, but was not as outgoing as other hosts on our trip. He provided helpful advice when prompted.
The apartment was generally clean and tidy.