Maybe a little pricier than a drill, but then you have a controlled speed that is just right for milling your grains.Lack of instructions? Not hard to figure out. You'll need a length of wire for a power cord and a plug and you're ready to go. Am not an electrician, machinist, nor a carpenter so a high degree of specialized skill is not necessary.Tools needed? A drill, a wrench and a metric Allen wrench for the connector on the motor side..How does it perform? Oh, yeah. Have not tried it from a standing start with a hopper full of grain, but start the motor, pour your grains in and it doesn't even stutter. Quiet. Solid. Great performer. Definitely a worthwhile purchase.Am using it with a Monster Mill. One of the other reviewers gives the part numbers from McMaster-Carr for the right size Lovejoy connector. The included key for the shaft needed a few swipes with a file, but other than the wiring hookup, nothing else necessary for installation. If using with the Malt Muncher Mill, the necessary connectors are already included.