My FIL was diagnosed two years ago. It has been terrible for the whole family, especially him.

Another friend was diagnosed recently at 42. I really felt for him, as it was scary, and as far as I can tell he hasn't really gained anything from it.

So not terribly positive, I'm afraid. But if you want to go for it, I'll cheer for you, and maybe you can be the one in three who has a great outcome from a diagnosis.