This place and the hosts helped make our trip amazing and so memorable. Helen and Andrew are so helpful, caring, and attentive. Their communication is excellent, as are their suggestions and help, very quick replies, very friendly. Location is perfect, and the view from the balcony is breathtaking. We were walking/subway ride distance from EVERYTHING. If we return, which we plan to, it will absolutely be to this location.
Tips: Get the Hola Barcelona pass which includes metro tickets - their subway is much different than the US and each transfer costs money.
If renting a car, minimal street parking but a garage across from the flat that was only 22€ for 24 hours. Tolls are expensive.