If you think you can handle it, try it. Why not? They are not expensive, no more than 15-20 bucks and I think it looks great when you get like 2 or 3. They kinda hang out in groups in the sand and rock. I think they are really great addition, I just wasn't experienced enough, nor my tank mature enough and the LFS guys kept saying it was a fluke that I was killing them. I learned otherwise, thanks to SWF.com.
I think your GF will find these a lot more cute and more fun than the CC starfish anyways. lol