I went to ASC for my first tandem jump. Jumped had a great time, however I waited for 8 hours. They gave the "weather hold" excuse, which is a legitimate excuse sometimes except the skies were completely clear for over half of this 8 hour period. About 8 other tandem jumpers came and left in that time, without a refund of their money. I paid for "extra altitude", 14.5k feet, but got thrown out with everyone else... at 11k. If I had known that they and their parent company both owned by the same guys had been investigated twice by a fox5 news out of Atlanta for deceptive business practices I would looked for different dropzones.
As for the landing area, I know lots of people who have sustained major bone breaks in their rocky sink hole ridden landing area which happens to be more of a slope, and the swoop pond is more like a swoop puddle. Save yourself the time and frustration and look elsewhere.