Gents,
Horns new book is definitely not worth its price if you're only interested in 262-photos; Most of them are known...
But: Compared to other books about this a/c with KG 51 (often in english Language), it is the best available "Unit History" with interesting personell accounts, obviously written under consideration of first hand material (unfortunatley without mentioning those in detail!), and especially without the usual typos of british and/or american authors (sorry).
IMHO: very interesting, definitley an extension of the known "Classic" and "Japo" books.
The price of this book is not really justified, same as those in Freiburg
...