Black and Decker LM175
There are a number of positive aspects and a number of negative aspects to this lawnmower, which I have been happily using for the past few years. It replaced an older gasoline based mower which I was previously using on my relatively small lawn and backyard.
The initial price is very low compared to other mowers of this size, which was a definite selling point for me when I purchased it. However, now that gasoline prices are soaring, there is a large secondary reason to purchase this lawnmower -- it is electrically powered! This means no heavy gasoline containers, no spending money at the gas station, and lastly, it's better for the environment. The downside, of course, is that there is only an extension cord to supply power to the lawnmower. The mower also does not have a battery, which severely limits the unit's mobility; the mower is tethered to an electrical outlet. Sometimes this poses small problems as the cord gets tangled, but I have developed a pattern for mowing my front lawn and backyard which minimizes the number of times I need to reposition the cord. However, the lack of a battery, and of a gasoline-based engine, drastically lightens the mower compared to others I have used in the past; it's very easy for me to lift into the back of my truck.
In short, for small lawns or small mowing jobs, this lawnmower is wonderful due to its light weight, low unit cost, and low cost of ownership. However, some people may not like being tethered to the house's electrical outlet, or other external power supply, so this may pose some problems.
