The code that you first see in the check-in instructions should be ignored-it's inaccurate.. It is not made clear what Batiment means or where it is once you enter the building.. After you get to the 6th floor, there are 4 doors.. the key from the lock box fits into one door but doesn't turn... There is another of the 4 doors that says 'Fred' on it.. I didn't try that one because I wasn't wanting to enter Fred's apartment.. If you have trouble getting into the correct apartment, the host gives you many instructions but does not follow through and make sure you gain access into the apartment.. You need to go to a nearby cafe to get wifi to communicate with the host.. I got in after 5 1/2 hours because a man happened to come out of one of the 4 doors as I camped in the entryway.. He asked who I was and what I was doing there.. I said "I live here".. He asked if I was an Airbnb guest and then indicated the Airbnb apartment door I should go into.. If you have any issues with the host, he sends a long text about the 200 satisfied reviews he's had, the 4.5-5.0 rating he has and that he is an excellent property in a highly sought after location.. He never deals with your issues you've run into and indicates everyone else has no problems..