The apartment has a good location 15 min from Montjuic. It's a good value for a group of friends.
But please note that it's not one apartment but an apartment hotel and your apartment can be a little bit different from the pictures. For example if you stay in apartment on the 1st floor you'll have a patio. If you stay in apartment on other floors you'll have a balcony.
Another important thing is that there are fines for not washed dishes or not put out garbage (30 and 10 EUR).
On the plus side on the ground floor there are a computer with internet and printer, free coffee machine and lockers.