A decent experience.
The apartment is close to a lot of Barca’s main attractions but the neighbourhood is bad (smelly and dirty but quite safe) so make sure you balance the two and choose whatever suits you best.
The key for the apartment is digital and this was really nice for us since we were a group of 6 people. Other than this, the apartment looks pretty much as it does in the photos (so you get what you pay for) and the communication with the host was fine.
Please be aware that the apartment is managed by a company and after you book through airbnb you are asked to submit a form on their website, download their app, create an account, and pay a deposit that I did not know about (300€ for a 4-nights stay).
Thank you for hosting us!