I booked this space for 3 girls and it was the perfect size for us. We could've fit a fourth and still been comfortable. The hosts were very communicative and proactive to ensure we could check in properly. They even let us check in early and we really appreciated of that after such a long flight.
The location can't be beat - very walkable to Las Ramblas (shopping), La Boqueria (Barcelona's oldest food market), and lots of bars / restaurants / activities going on nearby. We absolutely loved staying here!
I'd highly recommend this spot to anyone visiting, especially for a girls' trip like we had.