47 / 50 !!!!!
Yes, that was my test score on the test after using this book. This tells the whole story.
The exact same questions on the test.
On a personal note, when you first sit for the test, there naturally is a high level of stress...at least for me as I abhor standardized testing and do terrible on them. Then, when you immediately realize, the book in format and questions has matched the real test, there is a sense of relief.
But, a word of caution...You must put the hours into studying the book, its contents and read the explanations. And, do get and use the free download extras they provide.
Also, get the traffic signs book as it is just as good. For an experienced driver from another country, it really does makes sense of all the UK traffic signs and road markings.