After reading the comments on this post, one thing has become clear.
There is no consensus on the benefits of Roon, in fact, it seems to me that people hear what they want to hear.
My belief is that people subliminally convince themselves that the money they spent was worth it.
I'm not saying that there was or wasn't an improvement. What I am saying is that the person paying for it "wants" to feel that it was money well spent.
I believe that the reality of the situation is that there are a lot of components that are excellent, but looked at individually, aren't significantly better than what the other guy bought.
Think about it.
Every time an OP asks for recommendations for a component, there are dozens of responses from Audiogoners extolling the virtues of component X, Y or Z. To me this is proof that the differences between components is minimal once a certain level is achieved.