We had a wonderful time in Barcelona staying at Oswaldo's place!
Communication with Oswaldo from the moment we booked the apartment was very easy and he was always fast to respond to any questions we had. Our flight was arriving in the morning so he offered to meet us early and let us leave our luggage with him so we could explore the city until check-in time (but it turned out there was nobody staying in the apartment the night before so he let us check in early!)
The apartment is exactly as pictured in the ad, and is in a great location for visiting Barcelona. Also it is incredible how quiet it is with the windows closed.
There are lots of great little bars, restaurants, bakeries, delis, supermarkets, etc nearby and we will for sure stay here again when we return to Barcelona. Highly reccomend!!