Depends on what kind you're looking for information on. Some of them prefer really low lighting and high current, and vice versa. Most of them cannot tolerate hair algae or cyanobacteria growing on them, or they start to decay. The red and yellow ones generally starve to death in captivity since it's hard to maintain constant feeding and good water quality in an aquarium. They are pretty, but usually not long lived.
The "Purple Frilly Gorgonia" is attractive, hardy, tolerates light real well, and grows relatively quickly.