The host was hostile, emphasized how lucky I am to rent her room so cheap. I paid the same amount ( around $50 CA per night ) in Rome where I stayed for 5 nights and I had TV, table and kettle in my room with breakfast served on the patio outside and without any bugs with room cleaned every day. My room here was never cleaned. There were other bugs there besides cockroaches. I used my own soap and shampoo, cup and spoon. The host tried to take all the plates and knife from the drier where I was told to take the cutlery from.
The odour in the room was awful, it was stuffy and extremely noisy all the night because of the traffic and the crowd.
My vacation was ruined with this accommodation. It was first experience with air B&B and I am happy that in other cities I booked hotels. I wrote air B&B complaint about the conditions but nothing was done. I will avoid booking anything with air B&B. I should email the health authority of Barcelona how it is allowed to rent such anti sanitary apartment.