We have bought two beginner-range arc welders (much like the one you linked) over the past few years and have yet to weld anything very satisfactorily. I don't doubt it's largely down to our own inability to weld, but it doesn't feel like it's our entirely our fault. Even after a lot of practice it is worlds away from just welding. We hope to invest in something better soon, which will either prove us incompetent or prove us a little less incompetent .