You can apply this analysis to anything. The US bills itself as the 'land of the free' while imprisoning more people than any other country, frequently in deplorable conditions by the standards of what we know about human psychology, penal theory and so on. How exactly are you weighting the good and bad factors here? How do you criticize the economic policies that led to doctors being desperately short of supplies without mentioning the bizarre asymmetry of US sanctions on a tiny island with few economic resources of its own? I was not a fan of Castro but to be honest I don't think that Americans have much standing to criticize him given the frequently atrocious nature of their own country.
I have to agree with the poster above in observing that much of the criticism here is nothing more than the regurgitation of propaganda that people have been fed since birth, and I question the ability of many posters here to distinguish between derived and received opinions on this topic.
This is why I ask how you're weighting the good and bad factors. No doubt your feelings are sincerely held, but since we're not privy to your personal moral calculus, how else can we evaluate it, or make meaningful comparisons with prior alternatives? This might seem academic, but it matters. I would likely have done quite badly as an individual in Castro's Cuba and would probably have been in a hurry to leave; on the other hand I can't but be aware of the dreadful conditions there that led to the overthrow of the Batista government in the first place, nor of the US' intransigence in refusing to tolerate a neighboring country following a path of political self-determination on purely ideological grounds, and putting it under extreme economic pressure for doing so. To use a Christian metaphor, don't be in such a hurry to point out the mote in your neighbor's eye that you miss the beam in your own.