The main thing is to set up the device normally, and not immediately run to cook and then complain that the wire is bad. I used it with the device "Stavr sau-180" - I made myself a smoker. Quite tolerable wire, perfectly replaces the electrodes . After welding, you do not need to beat off the slag, but just run a metal brush over the seam a couple of times and the seam shines
To help provide a better understanding, I've attached some photos.