For serious searing sous vide steaks, I'll use my Kamado Joe, and at temps that, out of all my cookers, only it can hit. I regularly run it up to 700* or more for searing steaks. And yes, I've gone through a couple of fire boxes and a lid doing that. And I replace gaskets sometimes twice a season.
The Kamado Joe pegs at an indicated 900*F at the dome. But at the grates, it's no doubt hotter than that when really stoked with the top and bottom vents wide open for enough time and a full load of lump charcoal.
You haven't eaten a steak until you've had one seared on cast iron grates or cast iron griddle inserts at 700* plus degrees.
I'll also use it on pizzas, where I need to bring the heat.
I'll also use it on lower temp cooks as well. For example for salmon on cedar planks too, as I feel that the water soaked cedar planks heat, give off steam and smolder up a whole lot better on grates placed above glowing lump charcoal than they do over a foil covered metal drip pan in a pellet grill. And I'll also use the Kamado Joe for rotisserie chicken or other foods, kabobs, etc., with the Joetisserie.
But for wings, burgers, run of the mill grilling, I can go either way. Kamado Joe or pellet, but prefer the pellet for those chores.
So to answer the question, when it comes to grilling, for the "heavy lifting", and where I really need to bring the heat, I'm using my Kamado Joe.
For garden variety grilling, I'd just as soon use my pellet grill.