Francesco's apartment is the perfect choice for both shorter and longer visits to Barcelona. It is located in the heart of the city, among the best restaurants and bars. As a remote worker, I stayed in the apartment for many months. It is recently renovated, the kitchen is fully equipped and the wifi is fast. I could work from the living room without issues when needed. Francesco is a great host, too, he always made sure that I have all my needs accommodated.
I can only recommend his place.