Centric VS Raybestos?

I've purchased Centric calipers before, when they first brought them back onto the marketplace.
Didn't find anything wrong with them, at that time.
But then, there really isn't much at all to a caliper.
The main body, pistons, and rubber seals.
What can go wrong?

I have one Raybestos on order, from Rock Auto, that's due in later on during the week.
I can give you my report on a Raybestos unit, when i get it.