Two Cubans asked me if I was nuts taking my 3 kids to PR in the summer of 2011. We spent a week there travelling along the northern and eastern coasts and Vieques. No problems at all. We had a great time exploring the natural wonders of the Camuy caves and the rainforest of El Yunque as well as the historic forts and buildings of Old San Juan. As long as you're not looking for drugs, you can have a great time in PR with some very nice people.