Have used it a couple of times. It works better than my old snow shovel. I tends to bog down on heavy snow but that is understandable. It throws a good distance but leaves a dusting around where it goes if you are blowing forward.
I couldn't locate the serial number. Based on a Google search, other customers have the same issue. I found a number resembling a serial number on the box which I had to use to register. I look forward to using the machine for the upcoming snowstorm.
The machine itself is very easy to assemble, only had about 6 inches of snow which this monster was easily able to plow through easily and saved a lot of pain in my back.
VERY HAPPY WITH THIS PRODUCT. USING ON MY CONDO DECK AND IT WORKS GREAT AND SINCE IT IS CORDED IT HAS THE POWER NEEDED TO REMOVE ALL THE SNOW THAT WE GET FROM LAKE EFFECT STORMS.