I returned mine, had to eat shipping both ways.
The drive motor doesn't align with the input hole for the wire in the stinger. It's close, but I'd have to take the stinger off and manually feed the wire in. Mildly inconvienient, but it got me thinking.. The misaligned holes will cause bits of wire to shave off, which eventually ruin the liner... Which is not replaceable, so at some point after the 3 year warranty is up, I'd be buying an entire new gun assembly. That's stupid.
I did call, they sent me another motor assembly, it had the same problem.
I was also frustrated with the ability to do 1/8. Penetration sucked. Kept blowing the recommended 20a breaker (yes, dedicated outlet, no ext cord, used 10/2 to the outlet and a 20a outlet). Had to bevel or preheat to do 1/8 and get it to penetrate.
Found a hobart 210 on CL. It's not shockingly better made, but it seems obvious it was designed by someone who is a welder... Whereas the Eastwood was based on one a welder designed, but then costs were cut, or design changes were made to ease manufacturing. Not sure.
I'd say for just general stuff.. The Hobart (or any 220 welder I suspect) is much better. When it comes down to it, if I had purchased the Eastwood mig175.. I probably wouldn't have sent it back. I think my main complaint is that it wouldn't do 1/8 without being absolutely maxed out.
The 135 would be perfectly fine for doing body work... Which is how it's marketed. It did great on thin sheet metal.