Yes i have a spouse that is not 65 yet and she will stay on the AZ plan till she reaches medicare age. Looks like there will be the usual higher costs, less coverage for 2021 but still better value than what we could get otherwise.
When using the via benefits you put in your zip code and it will list the plans available in your area. I called up a service rep and they walked me thru some of the details on the various plans and then i selected one.
So for my medicare I am just paying $144/ month for the part B. Most routine expenses are covered $0 copay, including generic meds. Some other expenses I might see are the first 4 days in a hospital are $400 a day, but then 100% after that, use network providers, etc. $5900 max out of pocket payout.