I used Miller Mig welders in the body shops for years. I've had a Harbor Freight Chicago Electric 170 mig welder for 4 years. NO ISSUES, no real difference in weld quality from the Miller. If their newest line of HF welders have been improved at all they should be extremely good welders. I gave $169.00 for mine, have 4 years use building cars, no repairs whatever. I've welded 20 gauge up to 3/8'' plate. It's pretty handy.