I used this book in direct combination with the base Orberg text Lingua Latina: Pars I: Familia Romana (Latin Edition) (Pt. 1), and my satisfaction with the volume is untempered by the slightest scintilla of complaint. After pawing through each of chapters in the source book, I read through the matching colloquium, and the experience was sublime, because the struggle of the original is shown to pay off with fluent comprehension of the auxiliary dialogues. For this reason I used this product as a test manual to gauge my comfort with the lessons and vocab of the Familia: if I could get it at one go, I was good to advance; otherwise I needed to go back and review before moving forward.
Another of the benefits of the text was that it carries on with the same stories and characters as are found in Familia Romana. To most readers I understand that this will not seem important, but it provides a social context for the language which is vital for acquisition. When you hear language used by a character you know is a pig-headed student, you receive it differently from the same speech coming from a good boy or a lazy slave or caring father. Adding more stories with the same characters not only allows more chances to reinforce concepts of grammar and usage, it also helps the text develop social sense and not appear dry and unconnected to anything the reader has experienced.
When I learned Greek, I did it without the benefit of materials such as this. How miserable then was life, and how happy, oh so very happy, am I now in comparison.