I saw a TV ad on a similar tool, so I did some research and it sounded promising. I decided to buy it to just see how works. It's cheap enough that if it didn't work I wouldn't feel so bad.
When this item was delivered I opened it up and used it right away. I spent about 30 minutes pulling weeds in my backyard and front yard. It was so fun I grabbed my neighbor and showed it to him and we spent half an hour walking around his yard looking for weeds to pull.
Overall, it's a great gardening/lawn tool.