i have a gray poma angel, which is the same genus and looks very similar.
in my "reef", i have a favia coral, a millepora fire coral, and a montipora cap coral. i also have a few sporadic zoanthids. so far, he has not picked on anything. i've had him about 2-3 months. he's a very hardy and nice fish- eats right from my fingers, no aggression, and just a cool fish.
i don't know how he would do in a full on sps reef. the lfs i bought it from said they become more reef hungry as they get older. so far, that hasn't been the case.
i paid about $60 for him i think.
i hope this helps some...i have a pic in my gallery i believe.
see ya,
toonces