Are any starfish really "well suited" to the average reef tank? Most (if not all) have unknown or specific/limited food requirements. This essentially makes them temporary novelties at best. The only "starfish" I have ever seen last for years (which should be the minimum time frame to consider any sort of success) in a reef are the brittle stars which make excellent scavengers.
I get that they are charming creatures but encourage everyone to help reduce the demand for them commercially.