I love my TIG.
I've had a good MIG machine for 16 years or so and I'm pretty handy with it. I bought a DC TIG about 10 years back and got a lot of use out of it but it was only suitable for steel and stainless.
Last year I bought a 200Amp AC/DC TIG and I've been having a great time with it. There have been lots of aluminium welding projects I've been wanting to do but couldn't. The new machine has a HF start and up slope and down slope adjustments which make for a much better quality weld. It also makes it so much more satisfying to use.
I've built all me chrome molly rear suspension arms with the TIG and fabricated catch cans and other goodies. An AC/DC TIG opens up a hole buch of oportunities for workshop fun.
In this pic I've fabricated both catch cans, welded the pressure cap fitting to the water pump, welded AN#10 barbs into the the valley plate, welded the stainles radiator pipes together and welded the filler cap into the rocker cover. You'll find a heap of jobs for your TIG.
If you need any pointers just ask. There are a few welders on here. I'm an amature, pretty much self taught and still learning but there are a few real pros on here.
Have fun.