Sal, I run a welding supply store in CT and I always recommend a name brand unit. They cost more but you get what you pay for. I sell most major brands but I have come to the conclusion that Lincoln makes the best 110 and 220 migs.,Miller makes the best engine drives and Esab has the best Plasma cutters. Lincoln has the Powermig 140 that is great little machine.I sell them for about 565 and the spoolgun runs another 225. Welds up to 5/16 and also has a spoolgun option for aluminum or stainless. It runs circles around the millers and the no name brands. Comes set up to run gas or without gas(minus the bottle).Customer service is great and any welding repair shop will deal with lincolns for warranty work. The best prices are online at places like cyberweld and weldingmart.com Do not buy the Home depot models. These are hobby machines and allthough the look like the ones that welding supply stores sell they are different. They are cheapened to meet a certain price point for certain retailers. Welding supply shops will usually only carry the industrial versions of the machines. Case in point the Home Depot Weld Pak HD. It looks the same as the SP-135 but has no interchangable internal parts. It is 200 dollars cheaper though. If you are planning to use this a lot ,spend the money and get something that is proven and has a huge support system in place to back it up. Just my 2 cents. Thanks, AJ