I've never used one of these before, but this tool exceeded my expectations. This is a fairly good tool for the price.The bad:One of the quill-feed handles refusing to thread into the hub. I cleaned up the hub thread with a 10mm tap. As others have said, the manual is absurdly bad. A completely useless waste of paper and ink. And one minor nit-pick; It did not come with the Allen wrench for the spindle set-screws. The coolant tank and delivery tube doesn't supply nearly enough oil to be of value. I used a 6 Oz squirt bottle to apply cutting oil as needed.The good:I've drilled ~80 holes in 1"+ steel and it has performed surprisingly well. The cutters are decent as well. I After 60+ holes with the 16mm (5/8") and it cuts nearly as good as the first hole. THe motor is plenty strong to drill aggressively with a 20mm cutter.The quill-feed handle is reversible if you need to work an tight spaces. The unit is fairly tall. My application required that I drill between the flanges of a W16-77 beam. It worked well, but I don't think it would fit in-between the flanges of a 14" beam.All in all I'm pleased with the purchase. It did what I needed for less than renting a Milwaukee. No regrets.