All things BBQ and Braai

My ex BiL had a Green Egg. He cooked all sorts on that, it seemed an amazing bit of kit. Are they sneered at in bbq circles or are they perfectly acceptable?

The food he cooked was bloomin lovely so ultimately I don't care, I'm just intrigued as to how they are perceived.

In his divorce the Egg was one of the first things that he stipulated he wanted ?. That was non negotiable.