I went through both HY and BRS Behavioral. HY was useless across the board. BRS was great for building foundation, but in retrospect, I actually don't think it helped me get any additional questions correct on my real exam. The behavioral that will show up on your exam will mostly be ethical situations that you can't really study for. After I finished my exam, I felt that I practically could have spent zero minutes on behavioral for the past year and still had answered those questions.