While it's easy to showcase a handful of good things going on in cuba, their government hasn't changed and it's still an oppressive dictator running the whole thing. The US has said time and again, get rid of Castro, and we will talk trade.
You could argue that China is in a similar situation, but they aren't sitting on our front porch.
In my mind, I see Cuba as a totally failed country. The country could be one of the most beautiful places in the world if they would simply get over their old world government.