What do you think of the Cuban embargo?

In 1958, the United States placed an embargo against goods coming into this country from Cuba. Americans are not only prevented from bringing Cuban goods into the country, we're also not permitted to use Cuban products when we're out of the country. The embargo was introduced after Castro took over Cuba and remains in effect to this day.  What's your opinion on it?  (I've already posted mine.)  Should we still have that embargo today?  Is it something whose time has passed?