Spend more money.
That unit has very limited current control, looks like only 3, maybe 4 settings.
Only takes 5kg spools.
Has average duty cycle.
Doesn't include the regulator
Go to your local welding shop you might be able to pick up a really good cheap 2nd hand unit for $5-700. Otherwise have a look at the BOC Magmate range or the Linclon 180.
If you're a novice having limited control is going to make it harder to learn.
Look for something that can take both the large and small wire spools, has the regulator included, and has more current settings.