Heilman's writing is dull. His credibility is also greatly diminished by his last book about the Lubavitcher Rebbe.
Three interesting facts about these Hasidic Rebbes jump out at me:
1) Their supremely hypocritical way of saving themselves at Israel's expense when they denounce the Zionist enterprise both before and after
2) How often they fail to produce a son/heir or any children at all
3) the lust for power and the cynical maneuvering to get there
The authors fly all over America to see the real country. Interesting, if somewhat repetitive. The lefty biases of the authors show through; in all their travels to see the real America, they never once attend a church service. Also, for some reason, they think the reader is interested in their sporadic reminisces of China?