Welders?

I run a mig, Millermatic 135. It will weld with or without sheild gas. Sheild gas is a cleaner weld for finished products. I could say nothing bad about it.
If I have to get another, I will probably get a combo unit that will do both mig and tig. I'm not sure I can tig, shaky hands, but it is easier to work the panel when it comes to finishing work.