I was real skeptical after I grabbed one of those cheap irons on a whim to fix a busted headphone jack on my laptop. Figured it would fall apart after one joint or just not get hot enough. But I actually managed to desolder the old jack and put a new one in without burning the board. Went through maybe 30 joints on a practice board first and it held up fine. Has anyone else had luck with dirt cheap tools that everyone tells you to avoid?