Yes, I've seen that book too. However, I've been put off by the price/page ratio, and the fact that nobody else has recommended it yet either.
However, I have a couple of books on my wishlist (though quite low at the moment because the last thing I want to do is develop interest in
another vast area of the RAF that would cost me a fortune

):
A Forgotten Offensive: Royal Air Force Coastal Command's Anti-shipping Campaign, 1940-45
Search, Find and Kill!: Coastal Command's U-boat Successes in World War Two
Though I really want this one:
The Other Few: Bomber and Coastal Command Operations in the Battle of Britain