In general the place was fine but we found some stuff. Its not as close to Plaza Espanya as described, its about 4 stops in the metro. You cant really walk to the square. Its also not a very walkable area as you have to take the train everywhere.
The main areas were clean, but the kitchen amenities like the oven, Coffee maker, toaster, and microwave were disgusting and smelled. The space under the beds was also dusty, as well as the bathroom corners.
Also, we turned the heating on and the boiler started leaking, making a mess in the kitchen.
All in all, the place is worth it because it's not very expensive, the apartament is very big and comfortable despite the downsides. Its very close to the metro and the area seems safe. There's also grocery stores nearby.