I have both the gourmet and the hinged. I prefer the hinged to the gourmet. Don't like the two pieces of the gourmet. The gourmet is handy if you want to use a vortex, can access the vortex, or even cook without the center.
I have the sear grate, but in general find the gourmet inserts (including the sear grate) to be gimmicks. I know others have and like them.