he's actually Polish and he loves Poland which gives him an insight that is lacking from any foreigner
Also, it is worth mentioning that AdanZamoyski is a descendant to that aristicratic family of Zamojski which a long time ago could even afford to build their own town Zamość, luckily enough on our side of the river Bug otherwise the town would have been lost to the Soviet Union in 1945.
I think Adan Zamoyski was born and bred in the UK at the same time being a heir to his Polish family long-standing tradition. And indeed, he is able to look at Poland objectively and from a distance. He could perhaps be seen as a prime example of the modern-style Polish intelectual elite which had little chance to develop in the long course of rather unfortunate historical processes. I read his book on Stanislas August, the last king of Poland in which he indeed gave a "fair and balanced" account of the king's deeds set against his political circumstances.
An excerpt from the critical review of the book by Robert Frost:Zamoyski deals splendidly with the multifarious aspects of Poniatowski's reign. [...]
He united disparate groups of reformers to transform a state which had long been in an advanced state of decay, and the Constitution of May 3rd, 1791, Poniatowski's personal triumph, was one of the great achievements of enlightened Europe, although that was not how the enlightened rulers of Prussia, Austria and Russia saw it.
It is also worth quoting the review as saying that the last king of Poland presided over an astonishing transformation of Warsaw, which more than trebled in size during his reign and became one of Europe's great cities