My wife bought me this as she is a cat breeder and we have four cats, so I fit the demographic of someone who has to live with a 'crazy cat lady' (and the book does really assume that it's a female cat addict). I guess that's the only real use for this book - as a present for someone who has to live with multiple cats because their partner likes them.
The book has fairly gentle humour - no swearing etc, so is suitable for anyone. It's not hilarious but there are few funny bits. It took me about half an hour to read the whole book, so it's only really worth it for a joke present if you can get it cheap.