Excellent book. Clearly written and formatted. The book is basically in three sections. First section is composed pre made Inn's. The writing is general on purpose. They've made an Inn for the mountains, one for a desert region, one for criminals, one for high magic etc.. They list unique drinks and food for each, some have special effects. They give details on the innkeepers and barmaids. They also include some possible adventure hooks related to the inn and its contents. The second section is how to play the inn and liven things up in it. This includes how the inn affects the surrounding region as well as adding outrageous food and some gambling games and song lyrics. The 3rd section contains most of the tables and is used to make your own inn. Table after table of unique quirks and hooks, nothing duplicated and well thought out.
The most common building visited by players in D&D is probably the Inn. Wherever they travel there is usually an inn nearby. This book is your best source for making this common building unique and fascinating to your players. If you incorporate this book to its fullest, your players will probably begin to like visiting inn's more than their adventure locations. There is a cliche' in D&D that starting adventures in pubs or inn's is lazy and too common. This book breaks that cliche' by taking Inn's to a whole new level. This is a must buy for a seasoned DM in my opinion.
My only complaint about this book would be that the art is primarily pencil art and is of a lower quality. But this does not hinder the functionality of the book and probably helped keep the book price low by reducing art commission costs.