Here's a long thread on the Prime Weld TIG along with a video and experiences from the welding web forum https://weldingweb.com/showthread.php?700179-Primeweld-AC-DC-Tig-225X
That is an interesting thread, particularly the discussion about the proliferation of capable low budget welders and how that will shake out long term.
It seems like Lincoln and Miller are addressing the home welder market with more expensive, but also more user friendly machines that have smart settings, Miller 215, 220, Lincoln 210 which provide the recommended settings for you based on the size and material type that you are welding.
As an inexperienced welder I look at that Primeweld with all those knobs and switches and it reminds me of the flight engineers console of a B36. That is a lot of moving parts, although I'm sure not as complicated as it looks once you become familiar with it.
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I thought all those knobs on the Primeweld looked a little intimidating too... but if you actually look at a closeup of the control panel they make perfect sense and are layed out very logically. My understanding is that many of the controls are only used when you are not using the pedal to set ramp in ramp out settings.
My previous TIG was a scratch tig with an add on gas torch to an old Lincoln ac/dc stick welder. So I too was a bit confused when I first saw all those knobs but as @MikeInOr said they're actually pretty logical and for the most part fairly easy to understand. Don't let that discourage you. More knobs means more control as you get experienced.