Kleo, over both seasons, gives good value. Although the story can at times seem to be slow when compared to fast paced, big budget and all action spy movies. However all the plot twists and subtle comedic moments need the slow moments to allow the cast to really develop their respective roles. It is an imaginative look at some of the events which happened during the end of 'The Cold War. I personally would like to see a third series made. Jella Haase and Dimitrij Schaad are excellent as the main characters. Putting Julius Feldmeier's character Thilo in the mix really does add to the various storyline.
Overall, I would recommend Kleo as extremely watchable and entertaining.