Very simple: It works! We have terrible soil here (a new house with a lot of mounds in the yard) so it's almost impossible to dig here with a shovel. It's like digging a gravel hole. It's not a perfect solution, but that's only because the quality of our floor is very poor. In my old backyard, that would be awesome. It can "get stuck" when it hits rocks, but I just pull it out and move it around and it really made planting lots of flowers and bulbs a lot easier than trying to dig with a shovel . Good buy!