Setting is I would say fair,the engine has a very slight roughness at start up, the cold start roughness feels like choking from to much gas, it will last for 3 seconds and runs up to about 900 rpm then settles to 800 then 750 for maybe 10 seconds then settles in at 700,once in gear it falls to 600 to 650. almost completely smooth just a slight roughness all in all I am pretty happy with the performance and the mileage of 19.5 mpg.JNT