The apartment is in a great location, with easy metro access, a 10 min walk to the beach and a few minutes walk from the Rambla del Poblenou (lots of restaurants, grocery stores etc.)
It was easy to keep in touch with your host via Whatsapp, she responded very quickly and also arranged taxis for our group.
Keep in mind that the shower is small, so if you are a big person you'll have some trouble getting in.