There must be 15 or more compost aerators that pop up when you use the amazon search. Most look goofy, and a bit hard to use. I'm picturing myself wearing suspenders and a red flannel shirt, heading out to turn the pile by hand. Not being the farmer type, but committed to trying this composting thing, I take a hard look at the one turned by an electric drill, before choosing the Bosmere model. A little exercise is good for me right? So it arrives in a day. It gets wrapped and put under the xmas tree, and before you can say "mulch" we are out in the yard poking the Bosmere aerator into the pile. Wow. At first it works great! Those blades fold back, allowing easy penetration into the pile, then flip out when you pull back, resulting in a gratifying huge amount of compost to be sucked up from the bottom of the pile. Over and over. We all give it a try! Great! 5 thumbs up!. Then it happens...The little right angle handle, which is mounted about 6 inches below the main handle starts to loosen up. Hmmm. This is a a good time to mention that the aforementioned little right angle handle does not come pre attached to the main unit. Instead, when you unpack the unit, a small allen wrench and a hardened bolt falls out of the package, and you realize, that a tiny amount of assembly WILL be needed before use. Oh well, no big deal: The parts are all there. The tool (allen wrench) is supplied. The predrilled holes are all aligned easily. In a minute, the right angle handle is attached, and off we go. But, after a few twists of the aerator, the handle starts loosening. No big deal,a few turns of the allen wrench tightens it back up. Then, after 5 minutes of use, it loosens again. More tightening and we are good for a while. Then loosening... I guess you see where this is going. Eventually the "Nut" end, (a fancy circular washer welded poorly to the interior of the handle) tears our completely, rendering the handle nonfunctional. The unit was broken and could not be repaired. Too bad. A great design, ruined by poor manufacturing. Don't buy this unit until the manufacturer provides a much more durable connection of the right angle handle to the main stem of the unit.