I have had success with mine. I watched it in the LFS for close to 5 weeks and saw growth over that time. Since I've had it, it has grown more branches off the base and stays inflated close to 90% of the time. I have it in a high flow area hanging from an overhang. I feed it 3 times a week, 2 nights it gets cycopleeze and the 3rd night it gets mysis shrimp/cycopleeze mixture. The base has begun to grow out as well. Not sure which genius species I have, but it resembles this one from the garf site.
http://www.garf.org/36/dendro/sclerites410289.jpg