I have been with SilverScript for about 12 years and I have never ever had a problem with them on anything. I take a lot of medications, so I have to have a good plan, and I think SilverScript is one.
I recently discovered GoodRX.com. I got a better price at Rite-Aid for only one of my prescriptions. Otherwise CVS/SilverScript has a better price.
Check it out to see if it works for you.