The next town over has water that tends to eat through copper. They get small pinholes start to leak then they realize this is the same throughout the house. This is a tough one to categorize as one could argue it was a misapplication or poor installation as the water should have been treated.

Things like poorly soldered joints or poorly assembled PEX termination or Sharkbites are a tough thing to quantify. Surely you've found how to make a good solder joint. However I would not characterize any failure resulting from a poor installation to be a failure of the product.

I will admit in my home I'm very conservative. I personally sleep better feeling the all copper plumbing is the best I can do.

BTW I also have water sensors in a number of places that can shut off the main water supply if water is sensed.