Stop in for a cup of coffee

If the welder and helmet both work, it is an OK deal. However, for a few hundred more, you can get a Hobart Handler 145 (made by Miller). I had one that lasted about 15 years. I upgraded to a Miller last year and listed the Hobart on Craig's List for $150. It sold almost immediately, for full asking price. Flux core welding is harder to do well on sheet metal, and it can get messy.
Machine is only as good as the person using it.
Personally I like flux core.