Grill side adds versatility beyond grilling...
Solid stove. Like most camp stoves, the stove-top burner is pretty hot (slightly controllable at the low-end with a steady hand). The grill side burns at a lower rate since it covers more area (it is about twice the size of the stove top) - makes a great place to simmer foods. Hence, a great combo package for the gourmet - heats up fast on the stove-top and slower simmering on the grill side to allow the flavor meld together!