The review titled "Be wary of the Master..." reveals more about its writer than about Tolle. It is ultimately unimportant to me what kind of person Eckhart Tolle is. His work speaks for itself.
"The Power of Now" is the most brilliant explanation of consciousness and existence I have read to date. It is stated so simply and eloquently, and effectively, that, if you settle down in a quiet space before you open the book, resist the temptation to use your intellect (to rationalize, compare and contrast), and just take in what is underlying his words, you may partake of the richest experience and deepest insightful 'aha's' you've ever gotten from a piece of writing.
And do get the book: put off getting the CD or tape until you've experienced the entire book in a quiet space. You shouldn't be multi-tasking when you read or hear his words, otherwise you will shortchange your experience. Lastly, do observe his pauses. They're placed where they are for good reason. This is the moment where you let the sense of what you've read sink in more deeply.
Then you may finally 'get' how to be present, to experience the vast and powerful "being" that underlies all our busy thoughts, awaiting our conscious awareness. And then, just maybe, we can heal this world.