A pretty comprehensive guide, though it can't cover everything, and Taiwan has at least one other distillery since it was published, beyond the varied and experimental Kavalan (Omar, in Nantou county - I don't know what it tastes like, just that it exists.)
I especially liked the detailed explanations of how whisky / whiskey is made and whence it gets its flavours etc. This supported my existing knowledge and also meant I knew what I was looking at while going around 2 distilleries. Also worth a mention is the fact that it covers whiskies which are a bit crap (Officer's Choice - not my choice) and explains WHY they aren't that great.
I would drink whisky no matter what, but since buying this book, I have branched out and discovered new things I like, a few things I don't (grain whisky is a bit bland for me - I can just file this under 'generic whisky taste') and some things I want to try more of (like rye whisky.)
A sad fact is that the book has shown me I once dismissed something whose worth neither the owner nor I understood. This was a special bottle of Bells. I can't stand Bells and nor can the biker who was trying to palm it off on me. Firstly, what was in that bottle would have tasted nothing like the Bells I had such antipathy towards. Secondly, it was actually worth a significant amount of money and I could have flogged it. I'd have got a good price too - I was a sharp little thing at 20. Hindsight is 20-20.