We have Medicare A and B and Medigap Plan G through AARP/United Healthcare. I have been happy with the coverage through AARP. It paid all of the amounts not covered by Medicare part B On a few of my claims, but I have not had many. My husband is still employed, but we opted to go with Medicare and Medigap coverage bc it was cheaper and had more coverage than my husband’s employer provided health insurance which is coincidentally through United Healtcare.