I HATE Gleim with an unholy passion. Used them for the CMA not the CPA, but the general layout and presentation of information is the same.
To be fair I have to say that their test prep software is far superior to Wiley. It really pains me to say that, but I didn't have the constant mistakes, typos etc in the Gleim software that seemed to be “normal” for Wiley.
Gleim material as a whole is VERY in depth and the questions in general are harder than what you will see on the test. I did do their free practice test for FAR and REG so got to see at least some of their questions. Its a two edge sword. If you really know all the material in Gleim (and manage to really understand it) you will probably pass the actual test by wide margin.
Its probably ok for AUD and maybe REG. I think for cost accounting and FAR it will be hard for people to really grasp the concepts because there are no real lectures. Their audio-visual presentations make me want to get in my car and drive into a wall. The books I have seen are error free but not great at explaining concepts.
Lastly- their service SUCKS. They are super nice and great until you buy something. When I reordered books (which I was entitled to per the “contract”) it turned into a huge arguement. I finally got them to send it but it shouldn't have been an issue. I have students in my CMA class that had failed their test and as such were entitled to a “reset” of their course. They didn't even want their money back- just the quizzes, etc to be reset. The only one that managed to get Gleim to do that for them without paying $$$ is a lawyer and I'm sure threatened all sorts of horrid things.
The price is good but if you think you need more than a book thrown at you with no service after the sale pick someone else. I paid 500 bucks more for Roger CPA, but I got everything I needed and the few times I've had a question or needed to contact them they always help me out.