I'm 100% sold on the Vulcan Pro-Tig 205 myself. The arc with TIG is extremely smooth and it's HF start so no touching the Tungsten to the workpiece (which caused inclusions). The foot pedal is very linear as well. Only thing I don't like about it (and I did replace it) was the TIG torch. It's heavy and the head is rigid and it's hard to deal with so I replaced the Vulcan TIG torch with a CK worldwide water cooled TIG torch, series 2 and it has a flexible head. The issue with the stock torch when welding aluminum or even steel at high amperage is the torch (stock) can and will get very hot, hot enough at high amperage to actually melt it.
The Pro-Tig is 100% digital readout, has 'fan on demand' cooling and it remembers the last settings you had and returns to those settings when you power it up. The digital display is very intuitive as well. Easy to set up, easy to use other than TIG welding does take skill to master, unlike MIG which really takes little skill.
The CK Worldwide water cooled torch always runs cool because it has coolant circulating in it constantly. Of course you need to add a water cooler, which I did, bought an Everlast cooler for it and bought specific coolant for a water cooled torch. I got the torch and the coolant from Weldfabolous and I also get my argon filled bottles from them. They have really good prices on filled bottles and free shipping on everything and no tax either. There is a bit of 'plumbing' involved and you also need to by a gas through CK DINSE connector for the machine. The CK Series 2 torch takes specific gas lenses and gas saver diffusers which they also sell. Nice thing about the water cooled torch is, I can run at maximum amperage as long as I want to and the torch never gets hot. We do a lot of aluminum here but it's also good for heavy gage steel.
I did purchase the HF extended warranty on both the plasma cutter as well as the Pro-Tig. Like their warranty. If for any reason the machines fail, HF replaces them with a new machine. Helluva warranty and worth it for me, simply because they are solid state IGBT machines.
The Pro-Tig and the plasma cutter will run on 110 as well but I only power them on 220.
Bought the CK water cooled torch with 25 foot leads and I also extended the HF ground clamp out to 25 feet as well. Bought a 25 foot roll of Number 4 stranded copper cable from Spartan Cable to extend the ground clamp and the stock HF ground clam is very nice with it's solid copper contacts and braided copper lead that connects the upper clamp to the lower clamp.
HF has really stepped up it's game far as welders are concerned. Right in there with the big players now and with their extended warranty and replacement guarantee, the stepped above the big players. You don't need to ever worry about finding a service center should your machine fail. Just return it to any HF store with your warranty papers and get a NEW one. No questions asked. None of the big players like Lincoln, Miller, ESAB or Hobart can even come close.
I know the warranty is golden as I purchased the Vulcan welding cabinet, got it home, did the minor assembly and went to unlock the side door and the pin lock key would not fit, so I called the local HF store where I purchased it at and they had me return it and replaced it with a new, in the box cabinet, no questions asked.
I'm 100% sold on HF welders, not that I'd ever sell the 2 Hobart 210 Migs I own simply because they are excellent machines and have never given me any issues in the 15 years I've owned and ran them.