We had a nice stay in Silvina's place. Her place is about a 45 min (depending on time) transit ride from the airport which she provides multiple options on how to get to her place. Her place is about a 2 minute walk from the nearest subway station and about 5 min walk from Sagrada Familia (amazing!).
Silvina's place is fully equipped and has everything you need for your entire stay. There is also a supermarket just around the corner or across the street if you need anything extra.
Our only minor issue was the the noise from the building maintenance that was happening during that week so there were couple days we were woken up by loud drilling. Silvina was gracious enough to compensate for that and I really appreciated her gesture.
Silvina is easily reachable at all times. She was accommodating of our late check-in. Ivan (her friend) checked us in and provided us information about the neighbourhood and Barcelona such as places to check-out, the different areas, closest convenient store, and house rules.
I had a great time in Barcelona and an amazing stay at Silvina's place and I totally recommend her place to anyone. It is very spacious and has everything thing you need and more including high chair and toys. Great place to stay for families.
If you book this place, you will not regret it. Have a great time!