Brief? Yes only about 9hrs long. Pleasurable? I guess so, the narrator's voice was pleasant, soothing without being dull. Irreverent? Not so much. If you're putting the word irreverent in your title, I'm expecting some humor, especially of the snarky variety. There was very little humor here, the history of England told in a straight forward, text-book manner. 3 💥💥💥 out of 5