I have the most beautiful Buffalo grass in my yard (live in Kansas), and it is usually very efficient at choking out most weeds naturally. However, even my Buffalo grass is not match for early spring dandelions. Since my grass is so dense, the dandelions are fairly large by the time they emerge, this tool is able to grab the dandelions at the base and keep the top and the roots intact and pull them out in one motion. Requires little physical effort, you can use your body weight to rock the tool back and forth, or use your arm/back muscles to pull. Leaves behind the smallest hole which usually fills in with grass very quickly. Works best when yard is slightly damp (morning when it’s dewy, after watering, or after rain). This saves me from using chemicals, I live in lake neighborhood and most of us here will not use chemicals in efforts to keep the land and water clean as clean as possible. Worth the money!