Medicare Advantage plans can be very worthwhile if you don't have any serious or chronic conditions. The horror stories are essentially all about someone who comes down with an expensive condition or disease or has some expensive long lasting (chronic) condition.
As long as you never have anything like that, a Medicare Advantage plan works well. The point I was making in my original post is that if you do come down with one of those situations, you will essentially be blocked from going back to Original Medicare because you won't be able to purchase a supplemental policy.
Mike
Go into the world and do well. But more importantly, go into the world and do good.