They are about as hardy and forgiving as any other SPS coral. If you can, buy an aquacultured one that's 6 or 7 generations away from being wild captured.
One caution. When they grow rapidly in a less than turbulent waterflow they grow so thick that they shade their center and the middle of the colony can die off. I believe they are meant to be fragged often so even though a huge mother colony looks great, parse it out to several smaller colonies.