Many things but mostly they need more help. General Customer Service is very poor.
My main complaint is drug refills are not filled in a timely manner (especially if a Dr's renewal is required). Several times they never submit the request the first time. When I contact Dr as to why they did not renew the prescription, they state they never received a request. Many times I have to make at least two trips to pick up one prescription.
Then once I get there I have a long wait before I am waited on. One time I was waiting on a blood pressure prescription to be refilled. I waited two days longer than what they said it would take and it still wasn't ready.
The reason stated was they just haven't had time to unpack the box of drugs they ordered. They wanted me to wait another couple of days.