Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Feels Incomplete and Inconsistent

This volume, while saying Advanced Dungeons and Dragons, does not fit in seamlessly with AD&D as it implies and will require tweaking and adaptability if you intend to use it. Likewise, many of the rules are unclear. For example, apparently only Humans can be ninjas. Humans, however, cannot be multi-class, only dual class, and yet all the descriptions of the Ninja imply requiring a multi-class character. In the end this volume runs into the same problems as almost all the early Dungeons and Dragons material; needlessly complicated, detailed to a fault, disorganized, forgetting or muddling important bits of information, and/or flat out contradicting itself. 3rd or 4th edition is definitely better. Look elsewhere if you can unless you feel nostalgic or actually like the old school style in which case i say "Good luck."