Small and appropriate for a solo traveler, as described. I used the Villiers metro stop often to avoid walking uphill from St Lazare in the August heat wave; felt safe at all times in this area. The elevator is tiny but was such a great perk! I very much appreciated the fan for evenings, but the studette was always cooled off nicely by morning.
Helga was always quick to respond when I had questions, and had a good set up with the concierge for getting/leaving my keys.
Only one outlet available for charging phone, etc. if you need more than that; there is one under the bed but I couldn't get my adaptor to work in this one. Also be aware that the toilet is electric, so you have to be very careful with your waste.