After just a weekend of fanatically poking holes around the lawn, I can already tell such a difference! The grass is growing better where growth was sparse before due to soil compaction. Very easy to use! Doesn't take much effort to get the tines in the soil. The only downside: if you have lots of compacted areas, you will have to press the tool down many times within 1 sq. ft. to get the number of holes needed for a successful aeration.