I was accommodated in a room that was not the one I booked. The room advertised on Airbnb, the one I made a reservation for, was a large sunny room with double access to a private balcony and connected to a small private living room. The room I was instead accommodated in was a way smaller room without balcony, without small private living room, a room facing the stairs of the building therefore a very dark room and very loud, even in the very early morning (5 - 6 am). When I arrived in the apartment I also found out that the room I reserved was rented by someone else since several months. Oddly, the host (who was abroad by the time of my stay) told this person who's permanently living in the apartment that I was a friend of the person who took care of my check-in (someone that I obviously never met before) instead of saying that I simply made a reservation via Airbnb.
The room that I was accommodated in was very dirty and dusty and the bed undone. The pillows had large stains. Also, there were no fresh towels.
Seen that the room description said there was no internet in the flat, before I decided to finalize my reservation I double-checked with the host to make sure the information was correct, but he answered that the information was obsolete for there currently is wi-fi so he needed to update the description. After I checked-in I figured that the Wi-Fi signal comes from a neighbor. Apart from being weak, the signal also goes off very often, therefore you should not count on having Wi-Fi in the apartment.
So I wrote a long and detailed private message of complain to the host and made a complain with Airbnb, therefore Airbnb required the host to cancel my reservation right away.
After 1 week from my message the host wrote back to me. He apologized and said that he made a mistake with the ad (for he has 1 ad for the large sunny room I booked, and 1 ad for the dark smaller room I was actually accommodated in).
I don't know whether this mistake is really unintentional, seen the experience and the lies that have been said to the person permanently living in the apartment I feel very skeptical about it, but either ways I should also mention that even the other ad, that by the time of my reservation had no availability in the calendar for all the upcoming months, doesn't show where the smaller room I was accommodated in is facing to. No photos of the dark narrow view of the window, no photos of the broken furniture in the room. Of course no hint about the dirt.
Also I want to mention that none of the ads says that the building lays on a street with a steep ascent and no bus stop, therefore the apartment certainly doesn't suit people with reduced mobility.