A year or so ago it was one of the most expensive places in the world to visit, because there is very little infrastructure and plenty of wealthy NGO people there hang out and pay a fortune for food and lodging to intrepid businessmen who drive goods in from Kenya or Uganda, etc. But I think a bunch of hotels have opened now so maybe it's not so bad anymore. I hear the Tulip is fine.
I wouldn't be afraid to go as long as it's someone else who is paying. They love foreign visitors!