Considering how much knowledge and information is available to you on this website, if you take it to Adrenaline...well you should get slapped. Drive it a couple hours north as already stated to IAG, Mach V or Agile. They all charge about the same and these shops specialize in Subarus. I had my previous 02 WRX w/ 18G tuned by Dan at Mach V who did a great job and my current 35R STI tuned by Jorge at IAG which I'm also very happy with.
I used Adrenaline to weld a simple flange to my cat-back, it's still holding and not leaking but it took the guy like 2 hours and came out looking like bird poo.