I've read & heard they are pretty much the same as White-tail (Pacific Pygmy angels)angels in personality.
Probably pretty decent Reef fish, not a great risk to corals (except for the usual fleshy ones.). Also, stay smaller, so cause less damage..
The negatives are, like C. argi & its relations, small but FEISTY. An aggressive dwarf angel. Hardy too.
Unfortunately, I've never seen a Fisher's for sale in an LFS near me, just White-tails.
Matthew