The appartement is near to the Sagrada Familia which was nice you have 2 subway and many buses close to the appartement. The appartement is clean, you have 2 bathroom and 6 real bed wich is great fort the families or the groups. You have a balcony and a good kitchen well equipped. These are the good points.
Now let's talk about the bad points:
It's an agency who handle the place so you lose the pleasure to deal with the people who live in Barcelona. The meeting with one of the employee is basic, cold. He asked to show our identity cards weird non ? In conclusion you'll not in contact with Romina Y Anna.
Be careful, the stay taxe is not included in the price. Moreover, you have a penality if you arrive late, so if you come from far away it's not nice from them :/. So we had to pay 89€ more for all of that. This was the first time that I had to pay more for an Airbnb.
The decoration is old very old, but it's a detail. One little detail, we didn't had coffee capsule for the next morning.
So it's a good Airbnb but I think you can find better in Barcelona