I just looked at one of these at Costco. $599 US for a "24" inch Kamado seems like a good deal. In some ways it does not look quite at the KJ or BGE level in quality, but I see nothing that will affect the ability to cook on it. The ceramic is plenty thick, stainless hardware etc. The gasket looks questionable like the BGE but is easily replaced when needed. The dampers look OK but may not seal real well for quickly extinguishing a fire, but that is a minor issue and can be addressed if needed. Lid is a tad heavy but not bad. Two tier grid system is OK, not the best out there, but should cover a lot of ground for most users.
The one big issue is I don't think it is really 24" grid diameter. I need to go back with a tape, but I am guessing it is closer to 21" for the main grate and maybe 20" for the top one. That puts it about halfway between a large and XL BGE or classic and big Joe. Size wise, this is actually about perfect for my desires. I already have the big equipment covered so the XL is larger and pricier than I need for a Kamado, but I do worry a bit about some larger items not fitting in the 18" size. 21" is just about perfect with the big downside being third party support for grids and grid systems. That will need a bit of research.