Limited, as in limited usefulness.
This book might be useful for someone who owned none of the other books.
For a GM who already bought some rulebooks it's completely useless.
I especially liked the idea to learn more about some of the "future and past" companions of the Doctor and was expecting since this is a Limited aka Special Edition that I would learn about some of those who where not mentioned in any other book. But I was wrong. Only two new companions who wheren't already found in another rulebook. One of those two wasn't really interesting. What about Vastra, Jenny and Strax? What about Donna's grandfather who had more episodes than Craig? The book is full of pictures of characters, players may like to play as, but none of them got an actual character sheet. It's nice to have a character sheet for the War Doctor but what about the ninth doctor? He wasn't in the special but he helped reviving the series, why doesn't he have a sheet? There are like hundreds of pictures of him in the books.
The rest of the book is composed of the core rules and rules for like two new enemies who wheren't stated in any other rulebook. The Attributes of the other enemies are already implemented in some other rulebooks. Don't buy it if you already bought other rulebooks.
[2 of 5 Stars!]