I was thinking of picking one of these up. I found a good deal at TS ( $449.00) . I'm comparing this unit to the Millermatic 140 w/autoset for about $200 more and was wondering if the autoset feature is something I truly need for doing body/frame/suspension type work. Any other diffs would be great....experience w/either/both cool too. I believe Hobart to be a high quality unit.......just for comparison sake, Summit has a complete Clarke package......140amp unit+cart+gloves+helmet for $419.00...opinions on that would be great as well