Myself, I have almost no clue what he's actually guilty of. Two things I do know: A. There are actual, honest to goodness Cubanos that liked what he had to do. B. I put very little stock in what I hear about other nations from dissidents and the CIA. In fact, it's probably just as safe to assume the opposite.
This is not a defense of The Beard. Only an observation that what we know of his misdeeds includes a great deal that's likely misstated and exaggerated.