Lets start with the most important thing, would I recommend? Yes, it is perfect for the urban explorer that plans to spend most of their time out in the city. It is very close to Placa Catalunya and from there it is easy to use public transport to go anywhere. The communication was fast and to the point, which I like. It was very easy to find the apartment. Just get of at placa Catalunya or Urquinaona and walk for a few minutes. It also got a (small) elevator which was very nice after walking 6 to 10 hours per day.
And the boring part, what was less good? It wasn´t spotless clean so it isn´t a good fit if that is important for you. For us, that wasn´t a big deal . It wasn´t really dirty, just not spotless .
Something to think about? The apartment faces a road with heavy traffic from dawn till dusk so if you want something peaceful I recommend looking for another area.
Other than that, the apartment was good enough, exactly how we like it.