I will throw my $.02 in. I have had the Tig 200 and VersaCut 40 for the last two years and have been really impressed with both. I did a lot of research before I made the purchase, and I would have much preferred to get a name brand Tig and Plasma Setup, but it wasn't in the budget, so I went with Eastwood and have not looked back. While they are basic units, and the Tig lacks some of the adjustments that the fancier and more expensive units have, for what they are, they perform very well. These are build for the Hobbyist, and for that market they are a great value for money.
Both the tig and the plasma have taken everything I have thrown at them, and I have never hit the duty cycle. That includes welding quite a bit of 1/4 inch aluminum and cutting an 18 inch 1/4 inch plate in a single pass with the plasma cutter. I use the plasma cutter for pretty much everything, it cuts both steel and Aluminum with ease, and if you have a steady hand use a straight edge you can get cuts that look like they came off a shear.
I have found the Tig works best on steel (DC), I can results get that I am very happy with on DC, not close to as nice as popskull welds are, but I happy with them.
The AC on aluminum has been more of a challenge to get a clean welds, and I am far from an expert so I think that is a lot of it, and also a lack of adjustment on the machine. Inspite of my lack of skills, with some fiddling, and gas lenses on the torch, I have been able to get good looking welds on Aluminum and strong to boot.
A few issues I have run into: The included regulator isn't great, but it works, I dropped mine early on and it broke, so I replaced it with a Victor Regulator/ Flowmeter for cyberweld that was well worth the Money.
A few weeks ago the gas supply hose on the tig torch split right below the torch handle, I contacted Eastwood and they sent me a new torch with no questions asked under warranty, they really stand behind their products. That is the only issue I have had. One thing to keep in mind: I had wanted to upgrade to a water cooled torch, but after some research I found that there is no easy/not very expensive way to do this. The air cooled torch in fine, it just gets pretty hot when you are using it for long periods of time.
This turned into quite a book, so to sum up I recommend Eastwood welders to anyone, as long as you know what you are getting into. Would I use one for Aerospace welding? No. But, if you want to learn the basics of welding on a solid unit that will grow with you for a good while, Eastwood is a great choice. In fact, one of their 220v Migs is on my short list to upgrade my Millermatic 140.