I used this book in parallel with Wess and Bagger's Supersymmetry and Supergravity several years back. The two books are structured very similarly; the biggest obvious difference between them is that Bailin and Love has "words" around the equations.
Explanations are generally helpful, and so I would recommend this book to someone learning supersymmetry. However, if you want to rigorously follow along, checking the results yourself, then the typos in (the first edition of) this book will probably cause more frustration than it is worth. The main results are usually correct---the typos tend to appear in the intermediate, "explanatory" steps.
These kinds of typos are benign to the casual reader, but frustrating beyond belief to someone trying to re-derive results. By the second or third time you have wasted hours of your time re-checking your work on an intermediate step before realizing that the text is in error, you may find Wess and Bagger's terse but accurate summary more helpful.
If it weren't for the typos, I would easily give this book 4-5 stars. I am sure that future editions will correct these mistakes.