First off, if you are gonna pay $500 you are buying from the wrong guy!
What you get is a very convenient welder, mig/spool gun that comes in it's own carry case for portability.
You get the ability to weld mild steel and stainless steel with or without gas. You also get the ability to weld aluminum.
You get 100% duty cycle.
You get a welder that uses regular consumables you can find at your local welding supply.
You can weld up to 3/4 inch single pass.
You get to know as the guy who save the weekend! LOL
Let me know if you have any other questions. You can also go to
www.readywelder.com to learn more.