Bought the 135 to work on my 66 Mustang restoration. Has been about 10 yrs since I welded and was a bit nervous. I plugged it in, ran a few test beads, and was off working on the car. This machine brought back my confidence. Never used flux wire, went right to gas. Set-up was super easy and the machine operates perfectly. Only complaint I have is length of the power cord. My car is on jack stands and the cord isn't long enough to move around and still have it plugged in. I had to make my own 15' 8ga extension cord (which I was told by an EW tech was ok) and it works fine. Don't pass this by. Eastwood hit a home run with this one!