As a solo female traveler, I highly recommend this to others! You really can't beat this location for the price. Silvia is very warm and welcoming and more than happy to give advice on what to see and do.
The room is not very spacious, but it's not a closet by any means. I was so busy seeing the city that I only was in the room to sleep, and for that, it's perfect. The bed is extremely comfortable, you get some pillows and extra blankets. Plenty of power outlets, a lamp, and lock on the door from the inside.
I really feel like this was the perfect place to stay on my first time in Barcelona because I had the guidance of Silvia and was spoiled with such an amazing location right next to the metro and the magnificent Sagrada Familia. I definitely recommend it!