Strongly recommend.
Amazing apartment near Sagrada Familia with real catalonian taste as well.
Here you'll have no troubles with transport - a metro station and direct bus to the Sommorostro beach is near here.
Restraunts, bakeries and variable supermarkets are in complete, just take some steps down. There are also many interesting Spanish books, guides and albums inside.
Check-in and check-out were made easily and with great attention to needs of the guests.
Five stars imho. A really good choice for holidays in Barcelona.