"Estonia" is one of the best "based on true story" tv series ever made. It's not done like action-thriller about ships sinking or like court-drama with monologues that try too hard to be epic. No, it's respectfully done story about devastating tragedy and that tragedy's influence on society. What's the most important for me, creators respected tragedy by not making speculations about it's causes or how it went down, respected victims and their families by not turning "Estonia" in action schlock and respected us - viewers - by giving multiple points of view on these events for us to better understand why events after the tragedy played out like they did in real life.
"Estonia" is a show about conscience, about world where nothing is simple, even though it should be. We can see how blame can be shifted in every direction, while almost everyone is set to avoid acceptance of it. At some point we can start wonder: "Does those theories (explosion, submarine, other ship, military etc) about ships sinking are concieved based on some real evidence or on the basis of some loud parties that wanted to shift blame elswhere, to redirect grieving people away from them by making up false stories and false enemies?" It is important to point out that series creators do not hit you over the head with moral, but it is in there, audience must be opened to see it, audience must listen to understand the messages series are trying to get across.
I admire how series creators handled themes of the series. I respect series creators for the job they done.
Actors and crew also did marvelous job!
If I had to say just a few words about these series, then I would say: "Estonia" is a superb tv series.