I suggest going a little bigger than you think you need. I have a miller 210, and wish I had bought the 255 instead. I do have the option of running a spool gun if I ever wanted but the voltage settings arent infinately adjustable like on the 255, and once you really learn how to use your machine to its potential you may wish for more. It really boils down to how much use your welder is gonna see too, I have used mine way more than I had ever planned to.
