Good:
Is a small cozy studio, you will find all you need for a pleasant stay.
The apartment is near the metro station Badal (30m) and the internet is very good.
Adrià had answer to all our questions, we had communicated only on the AIRBNB chat.
Also he was very flexible reading the check-out and let us stay a little bit longer.
He give us a tip where to leave our Luggage (Sants Train Station), our flight was at midnight.
Bad:
The only problem that we had was with the a/c that didn't worked properly and it was a bit cold in the apartment (hope he had fix it.)