Our group of 4 friends had a great stay at Anna Maria's apartment. The location was right near two metro stop, a market, and numerous bars/restaurants. The area was safe (we never felt worried when walking around at night. The apartment itself was beautiful. It had everything we needed from bedding to kitchen supplies.
The two double beds were very comfortable (our friend in the single bed said the doubles were better). The showers and bathrooms were both very clean with immediate hot water.
Our interaction with Anna Maria was a little difficult at first because of the language barrier. But we managed to figure everything out in the end. A good grasp of spanish or catalan would be helpful, but english only is manageable if you work everything out ahead of arrival.
Overall, a great apartment with a great location. Anna Maria was a great attentive host for us throughout our stay!