I'm not sure you really understand what communism is all about, roses, but never mind.
I don't think anybody has claimed that Castro's Cuba was a desirable place for people to live, especially for those brought up in a liberal democracy. Cuba wasn't doing that badly until Russia cut off aid.
Anyway, a couple of statistics...according to the WHO, Cuba's life expectancy (2015) is 79.1, which isn't bad for a country which allegedly has a collapsing health care system. It's just behind the US (79.3) and the UK (81.2). Haiti's life expectancy is 63.5. Without Castro, Cuba could very well have turned into the kind of shambolic, corrupt place that Haiti is.