Not Ranked
I have a Miller EconoTIG and I like it alot. I bought mine used on Ebay last year and used it to weld up a couple pairs of side pipes. It uses an air cooled WP17 torch and has a foot pedal. If I were to do it again, I would look at the ones that you can take anywhere and plug into 110/220/460 V aka Autoline feature available on the Maxstar's or Dynasty's. I made the mistake of buying a 460 volt unit so I'm limited to were I can use it. Very limited.
One thing I do recommend is scrapping the lens cups and replace with a gas lens. You'll never look back as far as quality of welds and flexibility.
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