Unfortunately, our stay was very negative.
The accommodation was in acceptable condition: the kitchen utensils were not super clean, both hoovers in the house were broken, and other parts (i.e. a lamp and a handle) were broken too.
The real problem started after a few days; cockroaches!
After reporting the problem to the owner we were told that this was "normal in Barcelona" and that it was mentioned in the Airbnb description (which wasn't at the time of our booking).
The only solution offered was to keep all the windows/doors closed and to wait 2 days for someone to bring traps.
After asking for a quicker and more effective solution we were told that we would have had to wait and that again the situation was normal.
We then had the opportunity (thanks to Airbnb) to change apartment, and we did.
Knowing that we would be checking out the next day, the owner asked us if it was because of cockroaches, claiming that "it had never happened before".
Ironic since it is "normal in Barcelona"!