I've never visited there, but from what I heard is very safe as they have their own security. They also have their own water treatment plant, electricity, etc. This was to be a planned community from the ground up. The houses I've seen for sale on the internet in this area appear to be relatively nice and well kept. It seems they are geared towards the Dominican upper middle class.
It is located in The Santo Domingo north province around Jacobo Majluta highway.
Here's a link from another forum discussing it I found on the web: