OptumRx (now using "Optum", at least the third name in the last 4 years) buys their medicines from the cheapest company they can find. This means you are getting them from Canada, India, China or some other country you may never have heard of.
Why is this important?
Lets take Canada as an example. Drugs made by American companies must meet the requirements of the FDA. Drugs produced in Canada but being shipped to the U.S. do not have to be inspected or regulated by either Canadian regulations or the FDA! Caveat emptor!
Now consider the other possible origins of your medications. Do you trust India or China? Do you even know where your medications are being made?
I didn't like: Incompetent employees, Deceitful, Complete lack of honesty, Disfunctional business model.