Amazing location for seeing Barcelona on foot.
Walkin distance to Barceloneta, Plaza Catalunya, Catedral and most of the importan attractions. Metro station is just 50 meters away. There is a private parking in front of the apartment if you are driving (expensive though, Eur 32/night). Places for shopping and eating are all around the area.
Apartment is really modern, well maintained and well equipped. AC, washer, dishwasher, coffee maker everything really good and working properly. We could stay till quite late the check out day.
The only negative thing is that is a bit noisy during night hours, because there is a lot of people walking on that street, but that's the drawback of being at the city's heart.