I read alot about negative talk of the mpx.I HAVE The x70 and an xlt, the mine lab and the xlt are my favourites .I have to say that the mxp is a good machine. I wanted an easy machine to use as tool for grand children . It has proven to be a very good M D .I have to say the mpx recovered a silver ring and many coins. It is not an xlt or an 70 . I will take the mpx as a competent md.