What's a good intro welder for subframe connectors?

I will expand on the HF welder I bought but have not used. my reasoning for buying the harbor freight was it tigs, migs and stick welds. I also believe it will flux core weld. but truth be told I am mostly interested in tig, but at this point only have stick experience. I paid $800 some dollars for it and when it breaks, it breaks. I figure I can buy 2 to 3 of these things for the same price and features that a miller or lincoln would offer.