Who it's for. Exposed patios, coastal and high-wind sites, and jurisdictions where open flame gets flagged.
What it does well. Enclosed-burner infrared rated to 40 mph wind. It answers the two questions that kill commercial heater deals: "what about wind?" and "what will the fire marshal say?"
Where it fits. Rooftops, coastal restaurants, and open patios — anywhere conditions rule out ordinary heaters.