It's a 90 Amp machine, you can find a coupon for $89 if you look, and for what they cost they actually are worth the money
But with a couple of of caveats;
Not much good over about 1/8" (with experience you can get 1/8 attached to 3/16)
Smoke, because it's flux-core you don't see the puddle well and not the best to learn on (a sm fan on Low, blowing that smoke away, helps)
And finally, MIG in General, can give you a sense of false confidence
because if you don't know what you're doing you can make welds that look
OK but really aren't $hit. They have not flowed into Both sides (TEST your practice welds, by breaking them, to know what you've got....)
So you need to learn what you can/can't weld, what it's supposed to look like as you do, and a whole bunch of little "details" about whichever process you're doing. It takes time & practice but EVERYBODY should weld!
There's a TON of YouTube on this, everybody likes "Jody" at WeldingTipsAndTricks (although I'm not sure he's got much on flux-core MIG), but I'm sure you won't have trouble finding others.
Get out there, give it a try, don't get discouraged, maybe join the WeldingWeb forum (they have a HF discussion there -> Harbor Freight
) and learn to weld