The apartment is in a perfect location right between El Born (= many restaurants, bars, shops) and Gotic. And less than10 minutes walking distance from the beach / Barceloneta.
It has a living room with kitchen, bedroom, bathroom and terrace. While it's relatively small in terms of square meters, the place has been furnished and laid out to maximize the use of space. It reminded me a lot of the interiors of a yacht, with lots of wood and glass. So it does not feel as small as it is.
Before staying there I was afraid that it might be too hot as it's on the top floor with a glass roof. But there are 2 air condition units, so temperature was not a problem.
The apartment is right next to some busy streets so I preferred to close the terrace door during the night and it was very quiet then.
What was useful is that the place has a washing machine and dryer.
There is a restaurant that belongs to the property and it's one of the best in the area. They also serve breakfast. There are also several supermarkets right next door, so no problem to do some shopping.
I definitely recommend the place. I stayed there by myself for 3 weeks and it was great.