Poor fit & finish.  The ability to slide pots across the grates would be nice if not for the speed bump caused by the grates not being the same height.'
The burner knobs are not centered in their bezels; the knobs scrape against the side of the bezel when turned.
Numerous sheet metal screws loose or partially driven into holes that don't line up.
Pretty obvious that geometric tolerancing was not applied here & curious how a six sigma company can let defects like this escape.