The listing description was very accurate. The place was immaculate and the neighborhood fantastic and safe. The apartment is steps away from Notre-Dame, the metro and RER which takes you straight to CDG airport. I didn't really mind the stairs but would recommend carrying a smallish suitcase as the staircase is a bit narrow.
Special note for light sleepers; if visiting in summer months and require to leave the window open (we did), the noise from the bar and restaurant/jazz club across the street "Les trois Maillets" may keep you up.