"Anyone out there using the AOPA's medical programs ?"
JD, why do you ask? What service(s) in the program (which IMO can be very helpful for some folks with more complicated medical conditions) made you ask?
Here's a suggestion for you (so you can answer your own Q): Review the medical conditions and acceptable/unacceptable medications list on the AOPA website. As you do so, consider whether any of these conditions or meds are or potentially could be relevant to you. If you end up ticking one or two items, then I would think at least a first-year's subscription (only $39, right?) would be worthwhile. Join, go right to one of their paraprofessional or AME staff, ID the conditions you think are/could be relevant to you, and ask them to ID the boundaries on those conditions, where the lines are drawn, what measures the FAA uses in deciding if each of those conditions is disqualifying, requires a SI, or whatever. Then judge the value of the program - and its future utility for you - on the level of service and body of knowledge you received.
Also, don't miss the AOPA medical transcript feature (free to members). Log in the past medical visits they require and some bio info, then just go back and update it on those infrequent occasions when you visit a Doc. When it's AME time, click a mouse and you get the completed medical form, completely uptodate, printed out for you and - in most cases, acceptable to the AME. Sure beats trying to remember all of the past two years and what you placed on the form last time. You can keep that medical transcript on your computer -or- keep it on AOPA's server, your choice.
Jack