The conditions didn't change (ergo the embargo failed in it's intent) only causing more economic problems for the people you claim to be trying to save, and you want to keep it up?
No, I want to see it lifted, in exchange for democratic reforms.
Whether or not it was a good idea in the first place, it's in place now, so lifting it is one of the few carrots which the US can offer the Cuban regime. It seems silly to give up that carrot without extracting some sort of concession, particularly as the post-Fidel government may be more amenable to compromise.
If the US were to unilaterally lift the embargo without any movement by the Cuban government then it's not clear whether that would accelerate or decelerate the cause of human rights. However, making a deal has got to at least be worth a try, assuming our goal is a Cuba where people can speak freely, travel freely, own property, vote in freely contested elections, use the internet, and start businesses (to bring the topic back round to something marginally relevant to HN).
Yes those are our goals, but they will not be achieved by maintaining an embargo as the last 40? 50? years have shown... You can't just force or pressure countries into "democracy", that is not the way it works, there are more than enough examples in recent U.S. history that hint at this...
Even if you could, the whole premise of the embargo is flawed I think.. it only makes the cuban government look like a "martyr", in this case to the imperialist whims of the U.S. etc.