I have a Agri-Fab core aerator. It works well for its price point. My main complaint is there are no bearings on the points only plastic bushings. I am pleasently surprised how long they have lasted though. I loaned it to a friend who tried to pull too much weights up his hill. Now it is not a pull behind. The FIL built bracket and made it 3 pt for my 4310. Seems to be better. I really like being able to lift it out of the ground on the go.