1. viewing window allows monitoring of food without losing heat 2. convenient flip up warming rack for grilling larger meat 3. cast iron cooking grates 4. Convenient to prepare side dishes on side burner 12,000 BTU's 5. 5 long lasting ceramic coated burners delivering 48,000 BTU'S 6. 4 locking swivel casters for easy movement. 7. 670 sq inches of cooking space (502 sq inch for main cooking area,168 sq inch for warming rack) 8. Stainless steel smoker tube infuses flavor with pellets or chips 9. cast iron griddle included for cooking versatility