I found the information listed in this book very helpful and ideal for the majority of individuals that would purchase and operate this lathe. Though I wouldn't consider it a complete and thorough manual to correcting the issues typically found in these machines, it does provide a very solid foundation to start from, especially if the owner/operator has little or no formal machine tool experience or training.
I don't claim to be an expert on any topic, but I believe that most owners of these Sieg lathes could benefit from the material provided in this book. More experienced and innovative owners may already know and/or use a large portion of the tips, modifications, and procedures highlighted in this book, but would probably still find some of the material inspiring and useful nonetheless.
I would recommend this book to anybody that owns a variation of this lathe or that plans to purchase one in the near future. While these machines usually have some issues as delivered, the majority of them can be overcome with the right amount of time, experience, material, craftsmanship, and innovation as a good bit of this WSPS installment discusses. Overall, this book is an excellent companion and should be considered required reading for owners of these Sieg lathes.