I've had a pair from DD for six months and they're doing great. They took frozen ova within 24 hours of going into my quarantine tank and now they eat a broad range of frozen and prepared foods.
If you're going to try this, I would strongly advise a QT period to get them settled and eating before you put them in your display tank.
What kind of corals do you have? Mine have destroyed some corals in my tank. I would be worried about any bushy SPS or LPS. When I released them from the acclimation box in my DT, they made a beeline for anything with polyps, including my leathers and all my SPS. They killed two small colonies of SPS, but now pretty much leave everything alone. I do not have LPS in my tank but others have reported them being eaten by their spotted files.
Hope this helps.