I must admit that after watching the first episode I was not positive at all. I found it poor and very planned, like trying to imitate the really good series on this topic. But oh boy! I'm glad I gave it one more chance, starting with the second episode it's something quite different, very exciting and with great action scenes and better dialogues, I also really like the combination of the different characters. Very powerful! Many scenes will take you to the edge of your sofa due to the tension and suspense.
I found the sex scenes totally unnecessary, although I have always seen it as something very typical of Spanish series and movies.
The great cast of actors is a very good choice and the photography in the seaport of Barcelona is an interesting and different premise.
The actor, Eduard Fernández, Joaquin Manchado in the series, is really good in his role, he becomes the capo, the Barcelona 'godfather' of a criminal network that he manages with an iron fist, and not just metaphorically. ...but..the decision to replace his hand with an iron hook, due to an accident, seems exaggerated if I may say so.
If you're a fan of these cruel bloody crime thrillers, a lot of good action and mystery plots, then don't miss this one. Is a really good production.