I took a welding class in jr high then recently took another at GCC, AZ I learned quite a bit, my first welder was a HF arc 110amp and after the class I upgraded to a Lincoln "tombstone", this morning I was at the HF sidewalk sale and saw their 90amp wire feed for only $99, I thought what the hell I'll buy it, test it, and return it if it sucks, I've thrown down a few tests and I'm surprised by how good it works!
butt weld on 1/8" steel (only the center weld)
good penetration
the little mig that could
even taught the ol' ball and chain how to throw down a few beads