
From his vantage point we get a first person's account of 4 emperors of Rome. The most disastrous reign is that of Caligula, Claudius' nephew, who was such a bad ruler that he was deposed in favor of Claudius the idiot. Among other things Caligula talked of having his horse made consul to the Senate.
Did I like it? Yes. I'm a bit of an amateur (not immature) historian (I only enjoy reading it, not writing), and have read the Decline and Fall of the Roman Empire, enjoying in thoroughly. It was fun to have this personal, albeit fictional, account (I Claudius) of an ancient historical period that I had read about. It does make it more interesting.
The shame of all this? Claudius was actually an accomplished historian, and had written his autobiography in eight volumes. We know it existed, but is now lost, most likely in the destruction of the Library at Alexandria (reviewer's speculation).