Wray got an Everlast machine and it has worked quite well. Here he is teaching Jac to weld aluminum. What is nice about the TIG is you can fusion weld and control the heat with the pedal when on continuous.
If you plan on teaching yourself there are a lot of videos and articles about it. I've found I need to keep the torch moving and out of the puddle. A good comfortable welding position is essential.
https://www.youtube.com/watch?v=_RXW_zAbMLQ