This was my first Airbnb experience and I am so glad I chose this place because Agustin and his family made it very enjoyable for me. For starters, I arrived late at night because of my plane, and they waited awake for me to arrive at their place. Every morning they brought over a hearty breakfast at the time I would specify, and it was so nice and filling that I didn't have to spend money outside every morning looking for a place to eat. The room and the bathroom were very clean, and I was provided with all the basic necessities such as shampoo, towels, shower gel, etc. Agustin and his family are very nice people and they respect your privacy.
I had purchased an Art Passport online before the trip, which enabled me to enter 6 museums for 30 euros, and I was happy that Agustin's place was at a walking distance from all of these museums. It took me around 30 minutes to each museum. The neighborhood is also very nice and it has a huge park right next to the apartment building. The metro is also very close. There is a line that goes directly from Paral lel to Sagrada Familia, if that is one of your destinations.
Needless to say, if I am traveling alone to Barcelona in the future, I would definitely stay here again. :)