There are lots of posts in the forum from 2016 and after describing difficulties forum member clients have had with Medicare Advantage coverage. There are also other posts describing how well the plans have worked for others.
As I said, I think it becomes a value judgement about how much risk one wants to take. I think some of the focus on additional Medicare Advantage "additional features" may be misguided because I think I have seen posts from agents who have looked carefully at these things talking about how, once one goes beyond the surface of a catchy benefit category such as "dental coverage" or "gym membership" that one finds there are a number of unanticipated restrictions in the character of those benefits. If I had Medicare Advantage coverage, I would be worrying, at least every week of the remainder of my life, about the quality of my coverage. Applying value judgement, I refuse to inflict that on myself or those I care about.
Were I to become an agent, that presents an interesting ethical problem for me. I could not be an agent without extensive support from an IMO. My IMO of choice requires agents to do some work developing business plans, and part of their approach to that planning strongly suggests agents should be selling Medicare Advantage as well as Medigap. I am not sure how I would deal with that, but since I am not an agent, I can sidestep that issue at this time.
That is the Best Part about being an Independent Agent, You can sell in honesty and sell what is right for the client Not the company