Nervous about ending up with a mass produced junk box.

My view is, unless you have a unit custom built from the ground up to your specific specification (Earth Roamer comes to my mind), it's going to be the luck of the draw. You could get an issue free unit (like I did) or a lemon and there is no set pattern of good versus no good.

If you are extremely flush, have one custom built to your exact specs. If not, take a chance and be happy or be on here complaining....lol