Welding questions

I bought this one from craigs list for 600.00 it was a steal from what I read on line, had three mules welding supply go over it. they said it was manufactured in 2006 and it was hardly used.
good deal!!!!!!!!!!that's what its all about saveing $$$$$$$$$$cheak out the web sit I put on about the nascar stuff...and save allot of $$$$$$$$$$$I get 90% of mine from there