i've found the biggest problem with my HF welder is that it likes to lurch the wire. the wire stops and goes because it slides on the rollers and ends up in a frustrated welder and crappy weld
also the stinger and ground are both painfully short -- not bad if you're building a little project but real pain if you want some versatility. that said, it still did the job on my hysteer install.
i'm considering saving up for a miller 135 or similar welder -- if for nothing else, the nice reliability, and the ability to use gas for stuff like body panels!
