I couldn't imagine a better location than what you're going to get here. Surrounded by amazing bars, restaurants and coffee shops, it's easily accessible to las ramblas and eixample, but not quite flooded with tourists. The apartment itself is incredibly stylish and functional. It has two beautiful balconies with automatic blinds, easy for working and tanning. Because it's on the roof, I was never annoyed by neighbors walking around above me.
The host Yannick was absolutely charming and checked in throughout my stay to make sure everything was going well. He's incredibly considerate and kind, offering advice on things to do and visit. When I come back to Barcelona, I would absolutely stay here again if it's available.