I have used Yaeger for all four sections. The material that used was all *outdated* stuff with the exception of BEC (when I say outdated, I mean that I used the 2011 Yaeger material for FAR 2013, and 2012 Yaeger stuff for REG and AUD 2013). I did purchase a current year Wiley book to go along with everything.
Of course there are those who will disagree with me, but I have found Yaeger to be excellent for all four sections. Cindy Simpson does all of BEC and most of FAR, and she is great. I skipped a lot of the sections in FAR due to the fact that I already felt comfortable with many of the concepts, but the sections that I did cover with Yaeger were very well done. REG is done by Phil Yaeger; I think the weakest area is the taxation stuff in terms of Phil's presentation, but he is very effective with business law. With that said, I was extremely well prepared for REG.
I just got back from AUD… this is my weakest material, but again I felt well prepared thanks to Gary Bulmash, who covers auditing for Yaeger. He has exceptional knowledge of the material and really knows where to focus attention in terms of what is going to be on the exam. He doesn't spend a lot of time with the Wiley book and I thought this might be an issue at first, but it really isn't… the information that he provides in his lectures along with MC questions and simulations that he works with you is more than sufficient to give you the knowledge to pass.
I haven't tried any other review courses so I am not in a position to comment, but from my experience I would highly recommended Yaeger.