Other reviewers criticized this audio book for the 2 hour bio of Milton. I thought the biography of Milton was excellent. It really puts the poem in perspective and gives the reader a better appreciation for Milton and for Paradise Lost. If you don't want to listen to the bio, just skip to the poem. Milton's beliefs about the relationship of church and state were way ahead of his time, and he quite literally put his neck on the line for his beliefs. Milton is often criticized for staying loyal to Cromwell long after it became clear that Cromwell had abandoned many of the principles which helped him come to power. But what choice did he have? The alternative to Cromwell was the Crown. With Cromwell and his successors there was some hope however slim, with the Crown there was none.
Anyhow, the poem itself is very well read, but listen to this when you can focus such as on a walk. If you're listening in the car you'll be hitting the 30 second rewind a lot or missing much. This is no fault of the narrator, it is just a very dense work.
John Cleese narrate Dante?! Definitely took a few minutes to purge the Monty Python demons from my head, but once I got into it I think Cleese was a remarkably good narrator. Some complained it was hard to understand, but I thought he was very understandable.