I was in London in a tiny room for 3 days before I went to Paris. When I arrived, the front desk clerk asked that i email my confirmation to them so they can register me. I found that to be odd, as he had a print out of my expedia registration on his desk. Seems "sketchy to me".
The room was a huge change from my London stay. Large bed, room had it's own bathroom, and the 2 windows looking our were large and scenic.
The room was also right outside of a metro station, so travel was easy. The hotel wifi worked, but was very slow.
The hotel also had a number of small shops nearby for food, laundry, and other services that I needed, so the location was excellent.