Unless I missed it the ad is not for a true mig welder it is for a wire feed welder. I don't see any regulators for the shielding gas so it appears it is setup for use with flux cored wire. Plus I don't like the idea of a 90 day warranty................what are they afraid of
You don't say where you are located but I suggest you look for a better quality unit. Miller,Hobart,Century,Lincoln are names that have a solid reputation as quality units that should give long service life. And look to buy locally from someone that can help you with questions,parts,service,accessories etc. Good luck.