The location is what made us pick María's place and we're so happy we did for four nights in Barcelona! It's location at the top floor (6th, there's a tiny elevator) on a quiet, quaint street made it super quiet all day and let us sleep well at night. We loved staying in the neighborhood of Gracia; seemingly free of tourists, but close enough to feel safe and reach main attractions during the day. From door to beach (Barceloneta) was about 40 minutes, Plaza Catalunya 25, Sagrada Familia 20, and shopping/cafe 5-20 minutes. Really central and perfect for those who don't want to take the Metro or cabs everywhere. I was drawn to the apartment for the sliding doors, natural light, and terrace for morning coffee, siestas etc. We used it everyday to hangout and dry our laundry.
The kitchenette was great for coffee in the morning and to do some dishes. It is lightly stocked with all travelers need. The bed and sofa bed seemed to be king size, which we were so happy yet surprised by! We were just three, but it would work amazingly for four people who aren't concerned about a bed in the middle of the kitchen :) bathroom was perfect for sharing with a shower+ tub and toilet/bedet. Would recommend María's place to anyone and would stay there again when I return to Barcelona!