Is it actually any good?

Anything I say about Andrew Rilstone will come out sounding like a lame attempt to emulate his biting wit. His reviews of Jackson's Lord of the Rings films a few years back show that he understands the Deep Magic (of film adaptations, fanboys and casual observers, and crufty old English professors), so I've been eagerly awaiting his thoughts on LWW. So just go read it. 

The Life and Opinions of Andrew Rilstone: The Lion, the Witch and the Wardrobe