I bought Becker, Roger, Wiley, Gleim, and Ninja. I ended up passing with Becker and Ninja. I could not study with the Becker videos, but I found their book to be the best. They break stuff out the best and basically wrote each heading and the first sentence of each paragraph. I would do the mcqs in Becker after I finished reading a chapter. I would use Ninja to take cumulative mcq sessions on all topics. I was able to pass AUD, REG and BEC by doing about 25% of the Ninja MCQs and making my way through the Becker book. I passed FAR on my 4th try by doing about 90% of the Ninja MCQs, no repeats.
Below is a quick opinion of each. You could pass with any, these comments are just my opinion.
Becker – Expensive, but might have the best interface. You could use it on any device and when you are stuck on a question you could click a button and it takes you to the corresponding section of the book. Book is cool. Lectures are very boring and consist of someone telling you to highlight something or circle something.
Roger – Roger is very energetic, but is too fast for me. I couldn't track. Test bank is cool. I used Roger before he started creating his own books, I can't comment on his new stuff.
Gleim – I only bought the test bank as a supplement. Questions were too hard for me and I felt demoralized. I didn't understand what was going on. I can't learn that way.
Wiley – Slick interface, and bite size videos. I liked these lectures the best. During the lectures they'll go over the types of questions you'll get on the exam and how to work them. This was very useful. The test bank is also very large. Wiley might have been my favorite, but the website is very buggy and would constantly mess around with my stats. Sometimes when I logged in it would log me in to a quiz and if I clicked out it would negatively affect my trending scores. It would also say that I had assignment due, but I had already completed them. I ended up only using Wiley on a failed FAR retake as supplement.
Ninja- I credit Ninja MCQ with helping me finally pass. I pounded out MCQs all the time. Notes, and Audio are also cool. I didn't use the other stuff.