The little I know is that Consew is a good brand of industrial machine. Many home sewers use them for upholstery and thicker fabrics. May be a good buy even if you end putting some money into it. Google the name and see what you come up with. Looks like new they run over 1500 most places. Might ask how old it is and how many hours (roughly) that it has been used. They may or may not know but it is one question I would ask before buying.