We want a robbery heist with tight finish and fast tempo to be executed by ruthless professionals,we want to have clarity on who are good and bad guys.This is where Hollywood scores,without emotionalism without killing the tempo,we had such classics,The Italian Job,or Grand Slam,The Great Train Robbery.
This Spanish serial has good start and middle but starts flagging with the robbers of all the people becoming sentimental with moral dilemmas and are over filling with milk of human kindness,which is quiet unbelievable considering that why would so highly ethical people indulge in most unethical and criminal act of bank robbery.
We have such sentimental gibberish in Indian Bollywood movies, I would rather watch American movies where criminals are criminals and gangsters are ruthless but may have family life but lines are strictly drawn between personal and professional matters.