We have a Kingfisher.
And you can load it up pretty good. The Backyard Bonanza we have is 1,400 sq in of rack space. There are 4 trays, that cook very even. You do not need to turn or rotate anything when cooking. We have had 20 racks of ribs, 3 brisket flats and two butts on at one time with a little room left over.
Only complaint is even temps. To keep temps from spiking I need to add small amounts of coals every 1 1/2 hours rather than loading the box full.
I've got plenty of pics if you'd like them.