Our family of four stayed for one month in Carlos's apartment. We really enjoyed the local feel of the neighborhood. It was so nice to enjoy the tourist districts but then to come home to our apartment where most people are locals.
We loved the accessibility of groceries, there are so many options within a five minute walk. We found the cheapest groceries to be at Carrefore. There are so many amazing bakeries close by. Our favorite one was just outside the metro stop.
Taking public transport was very cheap and easy from the apartment. We enjoyed taking the bus all over the city and the metro stop is very close.
Our favorite thing about the apartment was the big balcony. Such a lovely place to eat a meal or lay in the sun. There are not many apartments in Barcelona with such big outdoor space!
Communication with Carlos and Monica was very good. They were prompt with answering our questions and quickly replaced a few items that were broken in the kitchen.
Our only complaint is that there is a mold problem in the bathroom (there is no ventilation) and some mold on the exterior walls from rain. We talked to Carlos about it and he said that they were planning a complete remodel of the bathroom after we checked out so that should not be a problem for the next guest.