The good: Sometimes touted as the healthiest diet in the world by some doctors and dieticians. Mainly due to the fact it’s linked to a reduction in heart-disease risk factors and blood sugar control. Studies based around the World’s blue zones (Those areas that have the most longevity and least disease) have also seen a common link with this dietary approach.
The bad: It still requires a conscious restriction of calories and possibly a good deal of meal preparation. There is a rough recommended ratio of carbs:fats:protein too which some might find confusing.
The stupid: Possibly the most famed aspect of this diet is the allowance, or even recommendation of 1-2 glasses of red wine. I’ve actually seen some people adopt this approach solely on the inclusion of alcohol...and everyone knows all too well it's hard to get that cork back in the bottle.