|To answer this question, you really need to put the theory tests themselves into context. You will need to take and pass 14 ATPL theory exams to receive an ATPL license. For the vast majority of people, sitting these exams will involve getting a sign-off (endorsement) to sit the exams and, in the case of those who do not hold an existing equivalent ATP or a large amount of multi-crew flight time, classroom study.
Our product is very very good at preparing you for questions that are very very similar to those in the actual JAA CQB. However, the actual learning content of the material that we provide outside of the questions and answers is quite limited.
So, to answer the question: in practice, yes, if you can prepare for your JAA ATPL to the point where you can take and pass our sample tests with a very high score, then you will in all likelihood be quite prepared indeed to do well on the ATPL theory exams. However, many people will realistically find additional study material, either provided by their ATPL course or obtained elsewhere, to be highly helpful.
View this software an an accelerator - it is meant to accelerate your study. It is not a 100% replacement for a multi-thousand-dollar course, though if you use our software wisely you can certainly avoid some of the drudgery and pointless parts of such courses.