Personally, I would reconsider the 110 VS 220 option. :yes:, I have a Lincoln 180 and it's a nice little unit.
^^X2
I originally had the Lincoln Weld pak 100 and it is fine for most general usage. The prob I had was the drive motor that spins the wire reel burned up in it. I found out later that the spool's set screw tends to tighten up over time and puts a strain on the TINY elec motor.
I have since upgraded to a 220v Lincoln 180c and it is ten times what the little weld pak was. It is about double the cost (About $800 bucks) than the 110 models but IMO it's well worth it. I get double the duty cycle, can weld alot thicker steel, being 220 vs 110 it use less amps, so the elec bill doesn't get ridiculous when I use it a ton and the spool's elec drive motor is three times the size as the one in the weld pak 100

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Overall I did like the smaller weld pak 100 it welded up just about anything I needed with no probs. It is a nice little machine and produces pretty welds. It would still be running today if I had known to loosen the set screw on the drive reel. But I do LOVE the power and heavy duty 180C I have now. Plus having the higher duty cycle is really nice when doing a ton of constant welding.
Hope some of this rambling helps:yes:
Good Luck