The location is perfect. Room is sincere to the description given by Carola. Since it is economical, the room is minimal and perfect.
A few suggestions to upcoming travellers:
1. I am new to Barcelona & relatively new to AirBnB. Lock is available to the Apartment door and flat door. However, there's no lock for the room. Same for cupboards. I don't know if that's how AirBnB works. I trusted my fellow flatmates and was okay with it. But if you have a problem, you need to carry your expensive items everywhere.
2. AirBnB's address is absurd/not-clear. Follow the address given by the host.
3. It is on the second floor and accessible only through stairs. If you're having heavy luggage, consider asking for help.