The only Amazon / Evil Energy hose and fittings I have on my Cuda are for the breathers coming off of the valve covers to a puke can. I felt that was low-risk. I wouldnt use them on engine coolant or fuel - but I have no first hand experience of failures.

I DO have Jeg's house brand hoses and fittings on my fuel supply and return, and they have held up fine with no leaks for years.
Maybe this stuff is all made in the same building by 7 year old Chinese kids these days.. who knows.