The first series was shown in the UK back in 2017 and I really enjoyed it both for the history and the personal tragedies that unfold. The interesting stories are with the conflicts between the characters and their changing fortunes and their priorities with the sides they choose to take as their village is divided.
There is some lighthearted moments but mostly this is a tale of the harsh reality of a nation that lost its' way and power and how the people have to come to terms with this and their villages' division under the super powers.
I was excited to learn of a second series but it was unavailable in the UK so I went to the extreme of buying a subtitled DVD version from New Zealand. It was well worth it. The second series does feel unfinished and it could do with a third, however, I expect there is not much more you could do but tackle the eventual reunification and that has been told in other German series in recent years like the excellent Deutschland 83/86/89.