I think the best word I can come up with to describe this book is 'cute'.
I love the idea of it, and there are some great tea quotes in there. But it's something that I think works better in concept than execution - it was light on detail, and I found myself thinking, "Cite your sources, damnit!" several times, especially when the author started citing health benefits.
On the plus side, it was short - I got through it in an evening after I'd just finished another book, and it worked as the 'light palate cleanser' between fiction books that I'd picked it up as.
It did, however, whet my appetite for more in-depth explorations of tea that I can pick up from my local library now that it's open again.