I'll give this 5 starts because it is well written and accounts of 1930's Russia are rare and to me very interesting,
because Stalin did so many nasty and irrational things.
He was truly the most evil person of the 20th century.
BUT, I don't believe this is really non fiction,
more like a non fiction novel where the author takes many accounts and creates a composite that is more interesting and easier to write.
At no time in this book, or in any of his other writings does he tell what 2 cities he lived in after getting out of the gulag.
Also he uses pseudonyms for many of the characters,
even those who were killed in WW2.
The protagonist Neposedov especially seems like a composite.
He says almost nothing about the 8 years in the gulag,
Nothing about his time in the army or being captured, being a POW,
or how almost alone, he was able to avoid being sent back to Russia at the end of the war. Where he certainly have been murdered because he was a POW.
Too bad he died in 1984, he hated the communists and just missed seeing them get the boot by a couple of years.