I've long been a subscriber to the Telegraph, and in recent times its crossword is one of the few reasons I've remained one. Although the paper is now going the way of the tabloids with an increasing emphasis on sensationalism and celebrity worship,the cryptic crossword remains a reliable feature, and having it in book form has almost decided me on cancelling my subscription and working my way through the book itself (and others in the series), which are useful to keep in your bag to kill time when commuting, sitting in doctors waiting rooms, traffic jams etc.
If I have one gripe about Telegraph crosswords, including the ones included in this book, it's the fact that they neglect to publish the name of the compiler, unlike other quality papers. I think this is an insult to them (ie the compilers) and a (perhaps deliberate?) drawback for us solvers, who get to recognise the style of individual setters, and thus have a key as to how to approach a particular puzzle.
Still and all, this book is excellent value for money, and I thoroughly recommend it.