The appartment is in really great location, 10 minutes by walk from Sagrada. Near the accomodation there are several great tapas restaurants and supermarkets as well. Also there is a metro and train station really close to the appartment.
There is a lot of new kitchen utensils and electronics, which will be very usefull for your stay. Keep in mind there is no salt, paper or oil, if you would like to cook something.
Communication with the provider of the accomodation was really great.
Consider to bring your own slippers, because floor is bit cold (we were on our trip in October, this could be different during the hot summer days).