Pros: I found it very in depth for the subject. I expected something that looks like my college roommate put together. While the drink list is massive, I liked that it delved into stranger methods (many I never heard of).
Cons: Don't need this book to find out the best cure is precautionary measures. Since a hangover is essentially dehydration, chugging water is the best prevention for awful mornings. I use to get hangovers off 1 beer, now I slam a water with every drink and even though it's a buzzkill when drunk morning me is always happy I did.