I used the Wiley book of questions to supplement my studies of FAR and REG, with Becker being my main study material. I thought it definitely helped with passing. I'm switching it around this time, as I'm having trouble passing BEC with Becker as my main study material, so I've been using the Yaeger home study, which uses the Wiley book and sofware, and will be supplementing that with Becker and possibly Bisk questions. I've been extremely happy with it. BEC is my last part and I'm taking no chances. . .I lose FAR and REG in March. I've always been big with supplementing. Maybe its a trust issue. LOL. But I need to have a certain comfort level before I walk into the exam.