the confuser isn't exactly the same but very similar.
However, do you want to really learn the subjects or just pass exams for the sake of ticking them off?
I used it for air law then someone with a lot more experience than me (10,000hr airline pilot) asked me that same question then I never looked at it again.
Read the books, make legible notes and re-read areas where you have problems and speak with your instructor. I am currently doing my ATPL's and I think if I just used the confuser to pass the exams I'd be in simple terms f**ked to make an attempt at this mountain of books.
best of luck