Sharon,
I cannot say how exactly it compares, but here are two comments from those who attended my live session on Facebook this morning:
"Your PMP booster helped me bridge the gap between last year and this year"
"I would recommend the PM PrepCast Booster course. It goes over the concepts really well. The PMI bridge course (that I also took) test more of your knowledge on situational scenarios"
You can see those comments here
www.facebook.com/122199359969/videos/151507366696514