From a very recent NewsReal Blog interview by Elise Cooper:
NRB: Let’s put this controversy to rest; did the CIA get actionable intelligence from water boarding?
Kiriakou: I said in September, 2007 that Zubaydah produced actionable intelligence. I believe that to be true. I don’t know if he started to talk after the first time he was water boarded or after the last time. If you are asking me did Abu Zubaydah provide intelligence that saved American lives the answer is YES.
John Kiriakou: The Spy who Came in from the Cold Part One From his book
The Reluctant Spy: My Secret Life in the CIA's War on Terror:
What I told Brian Ross in late 2007 was wrong on a couple of counts. I suggested that Abu Zubaydah had lasted only thirty or thirty-give seconds during his waterboarding before he begged his interrogators to stop; after that, I said he opened up and gave the agency actionable intelligence. I wasn't there when the interrogation took place; instead, I relied on what I'd heard and read inside the agency at the time. Now, we know that Abu Zubaydah was waterboarded eighty-three times in a single month, raising questions about how much useful information he actually supplied. In retrospect, it was a valuable lesson in how the CIA uses the arts of deception even among its own.