This one just works. Usually these cheap little welders are high maintenance and you're constantly fiddling with them, but I've run three 2lb spools of wire through this thing and it's been at max amperage and wire speed the entire time and it's been flawless. The only time I've had to open the cover is to load a new spool. As always, these things are only as good as the source power, even a Miller of the same size trips breakers so I highly recommend a 240v plug, it makes these actually good