We were a group of 6 people and had a lovely stay at Matas' appartment.
Great location with the metro nearby, shops ...
You can't hear anything from the apartment so even sleeping with the windows open is fine.
The apartment was clean, spacious and actually even nicer than we thought.
Matas is really nice, he's quick to reply and even sent us recommendations of things to visit in Barcelona.
Definitely recommend 👌