This is a wonderful apartment. Clean, simple, and in a PERFECT location. From CDG, you can take the RER B to St Michel which is literally just a few feet away from the apartment. If you want elevators, A/C, and silence, this is not the place for you. But if you want an authentic Paris experience in an old building in a prime location, this can't be beat. Yes, it can be noisy late into the evening, but a little noise goes hand in hand with primo location. The noise is mostly people chatting, as the windows face out onto a little side street with cafes (not a major street). If you'd like to see the view out the bedroom window, google search Le Saint Andre at 2 Rue Danton, 75006. I found the noise to be pleasant like listening to the ocean, plus we were always exhausted and the bed was super comfortable, so falling asleep was never an issue! I thought the staircase was charming, but yes it is old, steep, narrow, and winding. It could be difficult for small children, uncoordinated or intoxicated adults, or people who travel with huge suitcases. It was a challenge to climb 3 levels after a late meal with wine:), but being up high was worth it, especially during the summer. The apartment has 2 windows on opposite sides, so in just a few seconds of opening the windows, you'd have a wonderful cross-breeze. The size of the apartment was perfect for me and my husband for 12 nights. I would think it would be a bit crowded for 4 adults, unless you get along very well and it is only for a few nights. The main bed was very comfy, although I think it is smaller than a queen (maybe the Euro queens are smaller, idk). The kitchen is just a microwave, little refrig, hot pot, and small cooktop. This was perfect for us, but it would not be the kitchen for you if you plan on channeling Julia Child:) We packed very lightly, so we needed to wash our clothes every night. This was very easy - the clothes washer was small but cleaned our clothes very well. The same washer is also a dryer, but we found it easier to just hang up our washed clothes and let everything air-dry. We did not see any mice in the apartment, but I did find a dead one under my table in a nearby restaurant. In this area of Paris, densely populated with side-by-side buildings that are hundreds of years old, mice and bugs must be everywhere. I think this apartment - being clutter-free and with a minimalist kitchen - does the best it can to keep unwelcome critters away. It was exceptionally clean, including the wood floors. This apartment was exactly what we were looking for, and I cannot recommend it highly enough. I hope you give it a try!