I have one!
I recently read a novel set post-War in Russia/East Germany and it was dire.
First of all, it borrowed heavily from Ayn Rand in its descriptions of how the "good" characters yearn towards freedom (represented by America). One of them mourns that his girlfriend can't understand that her desire for silk stockings and pretty dresses represented the freedom that being able to fully partake in consumerism has to offer. Is that an accurate expression of how any person has ever thought ever when their partner wants something they can't have and moans on about it?
The "good" characters are obsessed with America as the incarnation of freedom and will do anything to get there. Including blatant violations of Soviet law which mysteriously everyone ignores, for some unexplained reason.
Secondly, the various incarnations of the Soviet secret police wouldn't have behaved even vaguely like how this novel presents them. I doubt strongly that any high-ranking member would have answered the phone in his office in front of a suspected dissident and discussed top-level secrets. That's so fucking stupid that there are no words.
If the rivalry between the Vopos and the Russians had extended as far as this novel makes out they had, to the extent that they were fighting over this one guy, senior officials would have stepped in. It's inconceivable that a turf war over a fairly minor person would have been allowed to go that far. The officials concerned would not have had that level of autonomy - they would have had to report constantly as to how they were managing person X and why.
There was also a fairly clear answer to the central problem of the novel, which was - assassination. Neither agency was particularly shy about that, so why they avoided that in the book was a mystery. I kept thinking to myself "Look, have something a bit unfortunate happen to him, you're sorted, no problem". It made no sense why they wouldn't, especially as it could have been really easily disguised.
Finally I had some issues about the German used in the book. I suspect that although I do not know military German, the command you would give if you wanted someone to fire and stop firing in a warzone would be a bit different from what was written in the novel.
sigh And breathe....