Weak.
I'm a huge fan of Emanuel Outlines but this aid was definitely not worth the money. It's a thin little thing with not much substance. I'd suggest just reading throught the Professional Rules of Conduct and the Judicial Code and then just practicing some of the problems where ever you can get them cheapest.
This book is very helpful.
I read this book before taking the MPRE for the first time in my life. I took the Louisiana bar over 20 years ago and had not taken a bar exam since then. The book shows you how to analyze the test questions. The August 2007 exam was VERY HARD and VERY HORRIBLE!! A number of times I used the method in this book to help find the answer. It must have worked because I made a 93. High recommended, particularly for older attorneys who have not been in law school for a long time.
Excellent review book.
This book is quick and easy-to-read; having previously taken a professional responsibility class, it was a nice cherry on top in my exam preparation (note that I very easily passed the MPRE on my first try). I just wish it contained the Model Rules of Professional Conduct and the Model Code of Judicial Conduct, the inclusion of which would have been very convenient.