I have used several Manufacturers welder over the years on hobby and auto projects. Right out of the box and assembled with an argon bottle, I was very impressed with the quality of the welds from thin to thick material. On Christmas day I was welding everything I could find in my garage and it proformed great on everything I tried. I even put a couple of items I welded together in a vise and beat the crap out of it in an effort to break the weld. Instead just bent the steel.
Overall a great welder at a SUPER price and welds are very attractive. Highly recommend this machine to anyone.