I like the aquacultured rock. The fact that it is a renewable resource appeals to the hippy in me, and I found it had much more life than any of the other rock I have purchased from various parts of the globe.
Now, it certainly does have more life in and on it, so you should expect to find a few "bad guys" and deal with them, but I think the rock is still well worth it. I was delighted with the variety of goodies on mine, brittle stars, sponges, funny little corals. There were a few aptaisia and I had to remove one mantis shrimp though.
Sometime I want to take a 20 gallon, fill it with aquacultured florida rock, slap a skimmer and some lights on and just let the thing grow into it's own little ecosystem. Some people even find hitchicker fish hiding in a hole in their florida rock 8O !