Doug, I had real good luck with mine, but Jon had terrible luck with his. Same species, same store. What size is the one you want? (You sound like you're mostly talked into this - took what, half a day?
) As for compatibility issues, you'll need more info than I can offer, that's for sure. Mine is king of the tank.
Mine was probably 5" when I got it, and it's doing swimmingly. Pics are at
my little website if you want to push Yourself over.
If I could have one of the angels I once had, I would, but for Reef Safe - coolest fish ever.