Positives and negatives
The apartment is in a great location, very near to the Sagrada Familia and the Metro, with a Mexican restaurant next door, a little supermarket halfway down the street and plenty of places to eat and drink at the end of the street. Food and drink is about the same cost as the UK. The apartment is on the first floor and has a lift. It also has a lovely terrace for morning coffee or evening drinks. The apartment block is traditional Spanish and not touristy , with all the other apartments occupied by Barcelona residents. The Metro is cheap and you can get a 10 trip ticket for £7.00
However, the bathroom is very small, needs upgrading and deep cleaning. Also the office where you pick up the apartment keys is 2 miles away, which is very inconvenient when arriving and leaving the apartment, especially if you have to catch a flight or a train and you have all your luggage with you. Taxis are expensive and from the Sagrada to Barcelona Sants was 18 Euros.
If they upgrade the apartment bathroom, this will be a great place to stay for 4 people.