It cuts grass ... yeah .. like the other reviews say, if you have a dandelion that has a long stem, just go get your scissors cuz this baby isn't taking it down.  Have a broad leafed weed poking up ? Well, it's going to be there when you go over it.  I tried it at different heights from the highest to the lowest going over the offending weed again and again and again and again, and tried other weeds again and again and again and that remained true, as a matter of fact, they're still there right now.  Plus, it's pretty noisy not to have a motor, you won't be listening to the birds mowing, more like a loud clicking.  You will get a little exercise, if you have a small yard with no weeds this would be fantastic ... our yard is full of dandelions (we just rented and apparently I thought being cheaper and green was a good idea - I was wrong).