This item worked as advertised -- converting my benchtop drillpress into a mortiser in about 10 minutes.  Though it's tough to get square and set, once you do it doesn't move much.  The parts are all solidly made and the fit and finish is just fine.  Comes with a nice assortment of bits too.  I will say that the chisels "cooked" (turned blue) pretty quick, but that may have been my own mistake.