The flat is 100% how it looks in the pictures, even bigger than we thought and very clean. When me and my friends arrived from different cities and it was very easy to find it, it's just two blocks from Llacuna metro station (yellow line, L4), which has good links to Plaza De Cataluña where you can take the bus to the airport El Prat. It is also very close to the big mall Glories, where you can find a huge Carrefour and everything you need for a eating and shopping experience. It's halfway from Forum and from City Centre, and even close to Barceloneta. We had a very good experience, we found everything we need for cooking and all the bathroom and bed amenties.
I pretty much reccomend this apartament if you want to travel to Barcelona, it has been the best choice for us.