I had a good friend who has since passed away, who swore by these things...He cooked practically every meal on one, he even cooked some awesome pizza on it.
Someone mentioned charcoal...He never used charcoal, he only used real hickory.
Also Green Egg has some devout followers and they have their own forum where they share recipes, tips, etc...plus they have get-togethers where they all bring their green eggs and cook, and share food. You should look them up.
ATK Club Member #123. Ibanez Club Member #521. SRX Club Member #6