They didn't say anything I hadn't already read in Silent Coup (by Len Colodny and Robert Gettlin), except that Deep Throat was not Mark Felt. I don't know how true that actually is.
As I recall after reading it thirty years ago, Silent Coup exposed John Dean as the architect of the break-in. His then girlfriend, now wife, was a DNC callgirl and he wanted to get rid of the evidence.
I really liked Silent Coup - lots of documented detail.
The part about Woodward and Admiral Moorer working together to spy on the White House (for Haig??) had an interesting quote from Moorer. Something to the effect of “It is ludicrous - just unbelievable; to think that I would spy on the White House.”
Several years after I had read the book, Moorer was in one of the magazines (Newsweek??) about an article of him using his connections to create a military museum, but selling some of the items to foreign countries for profit.
His quote in the magazine used the exact wording that he had used in his interview used in Silent Coup.
“It is ludicrous - just unbelievable; to think that I would sell U.S. arms to foreign countries!”