(UPDATED) Review based on episodes 1 to 5.

The set is believable, the atmosphere is great, as is the acting (although there's no russian-ness to it).

Without spoiling, I can't give details, but these are my issues:

1. The biggest factual error is in episode #2, beginning at 51 minutes in and starting with "between two and four". Chernobyl could have been worse, but not that bad. As this is a topic that has relevance for today's energy and climate issues, accuracy is of great importance.

2. One of the main characters is invented.

3. There are some other factual errors. After you watch you may want to check the web to see what some of these are.

4. I don't know enough about conditions in the USSR to be sure, but while I'm no fan of that system of government, this portrayal is very harsh, perhaps too harsh?

All in all, a very good production.