Lack of AC Tig really *****. I have the 211 inverter and it is a great little machine. Just the other day, I got a cart built for it and to the point of being able to use the cart and figure out how to tweak it before I paint it.
For tig work, I use a Miller 330 abp and often work with aluminum. The cord holder for the 211 cart is made from aluminum. The Dynasty 280 would be the best match for what I do, so I am better off buying that when I can justify the cost. If the all in one had AC Tig or was good for welding 18ga to 1/4" aluminum, it would have been very appealing, even without all the waveforms and fancy features of the dynasty.