Except for ladrones, dengue, dangerous roads, questionable policing, some unscrupulous expats, food poisoning, faulty wiring, earthquakes, hurricanes, heat stroke, internationally wanted criminals, oceans to drown in, holes to fall in, things to trip over, water that's not potable, occasional lightning strikes, Leptospirosis and some other stuff I can't think of right now... nothing to worry about. You can probably make a longer list for whatever part of the world you're living in.
If you want every little thing in your life to run smoothly, stay away. If you're somewhat adventurous, up to a few challenges, and take reasonable precautions against those things listed above... come join the rest of us enjoying life here in DR. You'll seldom be bored. For me, the benefits (perceived and real) outweigh the negatives (perceived and real).