I use ExpressScripts and have been satisfied with their service thus far. I don't have mail order, I just go through my local pharmacy because I recently went through the hassle of changing providers AND pharmacies, and I don't want to do it again for a while. None of my meds cost over $2.95 for a 30-day supply, but they're all generics and not specialty drugs. I also get Extra Help because my income from SSDI is pretty low, even for a widow with no dependents.

I don't have any complaints. Before I went on Medicare, I blew through my savings paying for my meds, which all together were in the neighborhood of $1000/month.