I dont own a mig at home,just an arc(stick)welder,but I have used many at work and at my brothers shop.I'd strongly reccomend to anyone thinking of buying a mig to save up the cash to buy a 220V version,with the gas bottle--I've had very poor results with the 110v versions with the flux core wire on body repair panel work,and they are too wimpy too weld a frame or trailer hitch with-but I'd arc weld them anyway,since I am a better stick welder than I am with the mig(I dont get enough practice with the mig to get really good at it).At my friends shop we used a "Shmucker"or something like that name,they make battery chargers too,a 110v cheapie mig with flux core wire,and it was a POS--you could hardly weld an exhaust pipe with it--looked like a pile of bird crap,with hardly any penatration,then he decided to shell out the bucks to refill the bottle on his Miller 220v mig,and WOW--even a boob like me with little experience could lay a textbook looking bead with that welder--he sold the 110v one for 50 bucks,and doesnt miss it at all.Of course this might not be for everyone,but if you plan on doing any frames or heavy metal work,the 220v mig is far superior--even on thin stuff like mufflers and pipes and sheet metal I found the big welder much easier to use and got much better results--maybe its just me,but thats my thoughts on mig welders. /forums/images/graemlins/crazy.gif