Got one yesterday - from Grizz, through Amazon. Right after the order Grizz emailed about them being out stock till late July, but somehow they shipped one 2 days after I ordered it.
The unit is very compact, appears to be well made and well ventilated. Very quiet when operating. Comes with #17 tig torch with cups and electrode holders, stick holder, ground clamp. All fits together well.
After getting electrical plug and attaching it to the power cord, assembling torch, sharpening fresh lanthanated 1/16 electrode, hooked up argon tank, went DCEN, put on me self-darkening $40 HF mask and got to some sacrificial 2x2 angle.
Now, my experience with TIG wuz limited to $200 unit from HF - scratch starting with whole lotta sticking, cracking sound of the very aggressive arc. It worked OK, but this unit is leaps and bounds above it !
The arc is dead quiet and absolutely smooth ! It starts like a charm . HF has 2 settings and I think in one setting HF is always on, while in other setting the voltage gets dropped a bit, so you have to get the electrode closer to steel you weld to get it started.
It also appears to have a lift start. It is simply impossible to get the electrode to stick ! A+ With the el cheapo unit, I was constantly burning the tip off - either through sticking or when welding, due to the extremely "aggressive" nature of the arc. Not anymore . The arc is silkly darn smooth.
Next test will be welding 2 razor blades together - on pulse setting, just for the heck of it.
So there you have it folx. If one is a pro and welds for NASA, it prolly aint' the unit for you. But for a hobbyist, methinks we got something definitely worth considering.