Short answer: no.
Long answer, actively studying them and hoping to first fly one this summer as part of working into a flight test programme.
So I'd class myself as knowledgeable, but for the moment, mostly second hand knowledge. Nonetheless, very happy to discuss what I do know, and my opinions on it.
In very short term - I'm a fan, I think that they are definitely part of the future, but probably not all of the future.
G