This a very nice apartment which worked well for our month-long stay. Great location in the northern 3rd - close to markets, shops, restaurants of all kinds, many metro stops, and walkable to many sights including Saint Chapelle, Notre Dame, Pompidou, Carnavalet, Maison Hugo, and much more. The host was very attentive to questions, check in, and any problems (only called him once).
Only rated four stars because of some of the items listed below. Without those, would rate five.
Interesting note: This apartment is on the 5th floor (good elevator service). The host, AirbnYou, also manages the apartment directly below it that has just been refurbished. This combo would be ideal for a group that needed two separate apartments close by. Just need to bring the fifth floor apartment up to the clean design finish of the fourth floor.
Pros:
-	great location
-	very good size with plenty of room for two couples or a family (see note about second apartment)
-	good layout
-	two real bathrooms, with one en suite and the other near the other two bedrooms
-	plenty of storage
-	well equipped, large kitchen
-	rental agency was responsive and helpful
-	plenty of hot water, outlets, towels (bed pillows need an upgrade as was mentioned in another review
Cons:
-	overall, the apartment needs some repairs, replacements, and refresh to rate it 5 stars
-	rot, mold, and tile cracks in various areas of the tub and shower.
-	broken things need repair, including the master sink faucet and a toilet seat. Looks like the installation of shower heads was never finished, with tears in the ceiling.
-	worn out linens, comforters, and pillows (especially the pillows, which are really ratty and weird)
-	stains on living and dining room seating furniture
-	the master bedroom and living area, which face the street, get a lot of siren and general street sounds, even with the windows closed. In warmer weather, when you need to open the windows (there is no central fan system or air conditioning), it might be quite noisy.
-	the dryer bangs and is very slow
-	minor item: a neighbor next door seems to be a piano teacher and you can hear the lessons very clearly; if that bothers you, take note.
Overall, would recommend this apartment, but it needs some attention to the details.