Welder: How is a Lincoln Weld Pak 100 HD?

I really recommend that you make sure that whatever welder you get has continuosly adjustable wire speed and arc volts and not just click settings. It is nice to have infinite adjustment, especially when welding light gauge material.
A friend got a Lincoln from Home Depot that only had a click setting and traded it off for a 180+ in a couple of months. I tried using the first one and helping him weld with it and discovered it is very difficult if you can't make a fine adjustment for sheet metal.