This could easily be titled 'Israeli pensioner spies' as that is pretty much what it is...
It is essentially memoirs and insight into the agency and (some) operations by ex-spooks and the current deputy director of Mossad. It is intriguing for the history and to see how they intervened and affected the world politically and across a wide geography.
The entertainment factor is borne from the audacious and sometimes fantastic stories they tell which frequently include James Bond style plots and namecheck political players in the middle east and its locale.
The subjects switch between providing much information about certain things to absolute zero on others. Frequently they would just give a coy smile or evasive remark back to the questions that makes you remember it is essentially a program asking questions to a group of people that have been interrogated probably more times than you've eaten hot dinners...
Overall an interesting watch listening to people who have really seen and done some things...