This is a very important book, one that covers uncharted ground and grapples straightforwardly with the issues facing Japanese Buddhism today. In so doing, it also calls into question many of the assumptions and approaches prevalent in Buddhist Studies (both American and Japanese) and offers a much-needed reality check.
The range of issues Covell discusses is pretty wide (temple wives, taxation and temple finances, posthumous names and "funeral Buddhism" among others), most of which boil down more or less to the differing relationships between Buddhist temples and the larger society (or societies) within which they find themselves involved--with an emphasis on how some of these differing relationships in some way impact and even conflict with each other. The key conflict though, one that informs most if not all of the others (as Covell argues convincingly) is that between theory and practice, i.e. Buddhist self-perceptions and official self-presentations of being a religion of ascetic world-renouncing monks over against the reality that by far most of them are living the un-ascetic life of married householders, and Buddhist institutional structures and procedures have come to be built upon this fact.
Overall, Covell argues his points well, with an eye to the complexities and ambiguities involved. He maintains a focus on the Tendai school, which works well to keep the discussion specific and concrete so that it doesn't devolve into a plethora of vague generalizations without content, but he also makes enough references and comparisons to other Buddhist schools that the reader gets the point that these are trends in contemporary institutional Buddhism in Japan as a whole and not just Tendai problems. The whole "decadent modern Buddhism" narrative made influential by Tsuji Zennosuke would only serve to short-circuit his investigation before it even began, and he does well to argue against it and to make explicit its assumptions so as to expose them to the sunlight of common sense (yes, temples have operating costs and need funding, for instance).
Now, it must be said that this otherwise excellent study is the victim of some pretty careless and half-hearted editing. First of all, the writing style is a bit choppy, clumsy, and repetitive in spots (especially in the first half) and it bears too many telltale marks of having been the author's doctoral dissertation; a good editor should help an author smooth over these types of bumps. Second of all (and much more frustrating), several of the bibliographical references in the footnotes are actually not listed in the bibliography itself, including one work by the author himself! Come on now, folks, get your act together.
Still, these are minor nitpicks. The book as a whole is well-argued, informative, full of fascinating details and incidents, thought-provoking, sociologically astute yet by no means reductive, and significant in effectively critiquing existing scholarly approaches and attitudes to modern and contemporary Buddhism. Most of all, though, it's one of the very few books out there that'll actually give you the straight dope on Buddhism as it is in Japan today. Anyone interested in Japanese Buddhism, especially anyone planning on going to Japan to experience it firsthand, should find this fine book to be essential reading.