This is a pretty good book, I would say (although, I can't compare it with other ones). The book has 4 sections for each of the testsections. Each section has tiny steps and explains everything. After each step you take a small test to see if you understood everything. I got bored with all the explanations and examples, so I only did the tests and reviewed the sections, where I had problems.
It comes with a CD-Rom, which is very good, because you can practice either the computer test or the written Test. The only problem is the listening section is not on the CD-Rom. You have to buy it extra on CDs (which I couldn't find and actually don't want to spend extra money for). So if you have big troubles understanding spoken English, you'll have to get an extra training book. That is the big minus when buying this product. Everything else is great.

Listening section does not contain Audio CD, why are not these excersises on the CDROM?! The attached CDROM has less than 300MB and typical cdrom can contain more than 600MB!!!
The Structure section does not contain enough exercises. Some parts are easy for me and I need just 4-5 sentences to see if I understand the problem. Others are more tricky and they contain only 8 examples?! I am taking the test in four weeks, so I will see how much helpful the book was.

I've went through this book and worked on all the practice test on the disk, it really helped me to understand the test format in real test condition and provided concentrated review material in different sections. The only drawback will be the tapes included are too clear, which is really different from the real test (it's a bit muffle in the real test) lucky I went through the free toefl practice test material available on the toefl website on the day I took the test and realise that. Anyway, I got 280 points with the help of the book..really satisfy with the result! It's worth to try.

A work of art. This book is worth every penny. It costs so much because of the smooth & thick expensive-looking paper. Well written, I found it to have the best essay writing section. But does not include CD's to listen to native english speakers, you must buy them seperate.
For better grammar help get: Cliffnotes TOEFL CBT

1) The best Essay section. After doing all excercises you will able to map out a very good essay within 30 minutes. I had Kaplan, Princenton, Cliff's, Barrons, and Delta, but this essay section is much much better. Any one who would like to have good score for essay needs the book.
2) Grammar section does not reflect real exam. Make no sense to practice problems you won't meet on the test. There is a lot of junk information which has never been used on the test. I took the test twice so did friends of mine. Remarkably enough, ETS and authors of the book have different perspective for English grammar. Problems heavily emphasized in the book will most likely completely ignored on an actual exam.
3) Reading section is very good.
4) Listening comprehension is good, particularly in terms of phrasal verbs and idioms.
5) There are 7 full lenght tests on the CD Rom.
For more practice with real full scale computer tests I can recommend you to buy Delta's Key for Toefl Tests (10 tests) or Cliff's (6 tests). In addition, Cliff's has very useful grammar section.