I got a 401 at an estate sale in the desk cabinet. Have cleaned it 3-4 times. There are also good videos on the 401. I was lucky the gal that owned it before me received it brand new as a Christmas present and used it for her interior designing business. I have had no problems with it. DH used it and mended his denim jacket in a very thick part of the jacket on seam of a pocket. Love it. Happy I have it. Have sewn upholstery with it as she also did. The manual came with mine as the attachments also.