I bought a mantis tiller 2 stroke earlier this year,off of eBay,it was like brand new,the soil in my garden at home is heavy clay.although i have dug it the last 3 years,the tiller goes through it quite easy,although on parts where i have walked between rows of veg,the ground just needs loosening with a fork before hand,i don't think it would be any good if used on heavy undug land as it just bounced off the surface,hence the loosening prior to cultivating these parts.good luck