Alex and Gemma's apartment was exactly as pictured. It was very spacious and clean. The kitchen was stocked so we were even able to cook some nights. It was quite a walk to the beach (about 30 mins) but that did not bother us. It is around the corner from Sagrada Familia!
When we got there Alex showed us an entire binder they made filled with activities, restaurants, museums, pricing, etc which was extremely helpful for planning our days in Barcelona. The hosts let us contact them whenever we needed, they even scheduled a cab to pick us up early in the morning for the airport. I would definitely recommend this apartment to family & friends looking for a place to stay in Barcelona :)