The power of this trimmer was very disappointing. It may trim short grass 3 times around a football field as in the TV ad, but in my yard it could not trim the tall grass around posts, under steps, and around areas my lawnmower cannot reach, as it struggled to trim and stay up to power. I still only have done about 2/3 of our yard and it is charging for the 4th time. Also, the tool is too short for my husband to use without leaning over. The reason I thought it would be a good tool for him is because it was supposed to be light weight. But he cannot use it because it causes him to bend over too much.