We had a great stay at Montse's flat. It's small, but still a good size for a family of 5 (grown children!). The location is really good, within walking distance to the Sagrada and public transportation close by, as are shops.
I was happy, that the mattress suited my personal preference to medium firm and none of my family members had any complaint about theirs.
As Montse was out of town for our stay, she took care to have her friend Mariona greeting us despite our very late arrival. Communication too went smoothly. Highly recommend.