While the action pieces in Ep. 1-3, 9,10 are very much done in a top-notch with a sense of realism, the rest of the episodes feel rather dragging with nothing much happening throughout. It could've been more tensely packed rather than overly prolonged. Episode 4-6 pretty much involves too much emotional journey of the characters that seem to be relevant to the plot, but it's an action thriller at heart, so maybe it should've shortened those emotional struggle, and combine it more with the action rather than making them stand alone for long period of runtime. Overall, it has done a great job in telling the story, but it also feels like a finished ending.
Review of Echo 3
