Dynasty 280 is the top of the line in TIG
I'm not sure of that it welds better than my Miller Dynasty 200 but it sure seems to. I just plugged it in and changed my accessories over from my 200 and started making money. I'll be glad for a day off to devote to it to run side by side tests but at this time it's just a premium welder.
The only negative that I have found is that it lacks a carry handle on the center of the top like the 200. This was handy in positioning the welder on top of the cooler and lifting to move. The 280 lacks this so you have to fit the strap or use the 2 built in lifting handles. This is no big deal breaker to get an extra 80 amps and the features for 5 or so pounds more.
This is the best welder I have had the pleasure to use, pleasure to own so far.
Proseasy to setup and uses all Dynasty 200 accessories.
Consneeds center carry handle.