Miller and Hobart are the same company. As brjr51 said, Miller is more for industrial, Hobart is more for the home user. My Dad has a Hobart, and it performs very well for what we do with it. He used to be a sheet metal worker (retired) and said that the Hobart was virtually identical to the Millers that they used at the shop, only some minor differences, like the controls mentioned earlier.
