Firstly, when I wanted to do the check-in, I realized that the host hadn't sent me the codes to access to the property.
Then, I couldn't do the check-in when I wanted to as I had to wait for the host reply.
I did my check-in later than expected so when I hit the place, I went straight away to my bed.
I woke up around 4:30am due to the noisy streets near the property and decided to use the bathroom facilities. As soon as I opened the door, an odour came out and when I switched on the light, I saw that there was no WC and the floor was full of smelly water. Also, there was no tap water.
I immediately contacted the host and I continued during the morning till finally got a reply around noon.
Finally I had to contact Airbnb to ask for the refund of the booking.
Airbnb must ban this host taking bookings as they know she doesn't meet the advertised requirements and make the refund to the other guest that the host tells to use the 4th floor bathroom, another crowded apartment. Shame on you