Had a great 6 night stay here. The place is comfortable for 2 individuals. It has everything you need and the location is great for exploring Barcelona. It was clean and tidy and lots of British style decoration.
The traffic and neighbour noise kept me awake a little bit on one night, but that's to be expected in a big city.
The place is advertised for up to 5 guests, and there are beds/sofa beds for 5 but I don't think it would be comfortable for that many people for more than a night or two.