Forum member # 492 who did not watch the vids.
I'm a youtube addict-if I didn't watch those videos I've already seen at least half dozen similar ones. Let me summarize the probable conclusions of a positive review: (1) electric snowblower costs substantially more, especially if you buy backup spare batteries, (2) at best an electric snowblower works almost as well as a gas powered one but is a lot quieter and (3) battery life is very short in any sort of appreciable snowfall.
I'm way past standard retirement age and live on a hill with a 200 foot hilly drive. I've lived all my life in northern climes and had one gas snowblower or another since the late 70s. My conclusions: (1) snowblowers aren't needed for 1 inch of powder, a broom or a shovel will do, (2) when it's wet, heavy snow, for each inch above above eight inches your chances of a power outage go up exponentially as does the time needed to clear a way out. This alone rules out electric snowblowers for all but the foolish or lazy.
I'm not saying gas powered snowblowers are the greatest-they still come with carburetors (an invention of the devil), take a whole lot of basic maintenance that most people can't or won't do, and are are noisy and stink. Modern gas powered snowblowers are amazingly well engineered but they also really cheap out on things like using sheet metal thickness.