I was lucky enough to retire from an employer who agreed to keep retirees in the institution's group insurance plan with a supplemental payment that is so reasonable (currently $89/mo) that I have never paid any attention to the other options. It covers dental, prescription drugs and eye care, and gym membership. My spouse, on the other hand, has a supplemental PPO policy with Anthem that doesn't cover dental, but costs almost as much per month as our mortgage. Luckily, we have both had reasonably good health over the many years we have been in Medicare, so we haven't really had to test any differences between our coverage, but we have been equally satisfied with both so far. If I were to lose my ability to participate in the group policy, however, I would certainly look first at the new Advantage plans.