I got a Vision kamado a couple years ago and really like it. I've run plenty of overnight cooks with just a temp alarm to wake me if it flares up, and I've even run out to the store while it's going. It's just that stable. Other benefit beside low coal consumption is less air flow than a stick burner, so you won't need a water pan and can cook a bit higher temp without drying out the meat.
Main downside is that you have to let it slowly come up to temp, so it's worse/ less convenient than a standard charcoal grill if you just want burgers and dogs.
Check out
www.kamadoguru.com for lots of recipes, example cooks, and owner reviews for all the different brands. A BGE is nice, but to me will never justify the premium.