So there are a lot of hot and cold reviews. This thing has been around for a long time and it has always been seen as decent, but not great. A dedicated mortiser is always better but this gets the job done. The main bit is the yoke that attaches to the drill press. Not much to it and it works. The fence is a bit fiddly to set up but it works. The machining of the screws could be better on everything. The lock screw for the chisel is not great but again, it works. I think the big issue is that the chisels are not top quality and have burrs on them from the factory. To me a factory grind on a tool is never acceptable so I always assume some sharpening will need to be done. You need a conical diamond stone and a flat sharpening stone of some kind to properly sharpen the chisels. Once you give them a good edge this tool works very well. The mortise sill requires some cleanup by hand but it does get the job done.