I need the truth about wheel adaptors

I've noticed a pattern here with those who have had problems.

A: they were WAY back in time when the technology and stress tests we have today didn't exist

B: they've bought cheapie bs from jc Whitney (automotive dollar general) or some other retailer because the price was right.

Has anyone that purchased billet wheel adapters in the last 3-5 years that HAVE had issues? Billet aluminum from my understanding of what I googled, is the same material and machining method used in our beloved aluminum blocks, heads, wheels... I may be wrong on the last part, the link I read was a little iffy IMO. I'm sure there's someone on this site that makes these and other items for a living that can shed some accurate light. Here's hoping.