My boyfriend and I stayed here for a week, and enjoyed our experience tremendously. The location was wonderful, right next to two subway stops on the 4 line, which meant that after a long day of walking getting home was quick and easy. Though a bit rough to initially bring luggage up, once we were settled the stairs weren't bad at all.
Everything was super clean, the room even had an outlet adapter for American plugs, and Frederic was a wonderful and gracious host. The wifi could be a bit slow upstairs, so if either of us had to do things for work we typically went to the kitchen. Our favorite part, however, might have been his cat :)