Cuba is the sole example of a functional Communist Government. Their entire economy is based on tourism. Their citizens have more rights than anyone from Florida for example. The nation fully supports the LGBTQ community, it has free Healthcare and has a strong relationship with the European Union with job programs.
It still needs serious work in regards to human rights as it jails those who oppose the government.
From a United States perspective they would make a better ally than an enemy so we should continue to work on increasing diplomacy with Cuba.