Make sure to show your point of view whether you are for or against investing in Cuba.Make sure to show your point of view whether you are for or against investing in Cuba.
It also depends on what country you are investing from. Americans have no legal, ongoing economic ties to Cuba save occasional medical or educational aid, and limited groups of people are allowed to travel there.
All of the factors pohnpei mentions are quite relevant to the question of whether or not to invest, but in general, if I were an American business with opportunities in Cuba, I would have an investment plan in place right now, since the embargo is likely to be lifted in the next few years in my opinion. Cuba is not a gigantic market unto itself (population slightly less than Illinois) but it is largely untapped by American interests, so a potential for quick growth is there once the embargo lifts. Cell phones and tourism are going to do well there if that happens.
This is a very hard question to answer given the amount of information you've given. I would think the decision for anyone considering investing in Cuba would depend on factors that you do not include in your question.
Most importantly, it is important to know what kind of business you are considering investing in. The prospects for different kinds of businesses in Cuba are, of course, different. So you would need to know if "your" business is one that is likely to thrive.
With Cuba, that would presumably depend a great deal on how the government feels towards that business.