Good location, takes about 20 min walk to the old city, 30 min to the beach, 7 min to Sagrada Familia. Easy to find if you come from the airport (bus+metro). It's a really nice quiet area, you can be sure you'll have a good sleep.
The appartment is just exactly as shown at pictures, you'll have everything you need. Just note there is no iron (which I didn't notice before) and expect to have cold showers sometime (I didn't manage to fix hot water without help).
Silvia is a great host, very helpful and positive :)