They were very skittish fish for me, especially when brought in as older juveniles/adults. They reminded me of A. chrysopterus in this way and were easily spooked when you approached the tank. As small juveniles they were not that bad. I got past most of the spooking issues once I taught them to hand-feed; they would associate my approach with food and weren't so scared.
They are very jumpy - I lost more fish to jumping than to any other cause. They seemed especially prone to jumping at night. Even with the tank completely netted they would find a way to jump into the overflow, etc, and injure themselves. These were fish that all had a host anemone, too, so that I thought they would snuggle into the anemone at night. (My tanks were in a very quiet part of the house that did not see any night-time traffic so I know they weren't being scared by people walking past their tanks). I would recommend you try moderately bright night lighting to try to prevent night-time spooking.
I did not encounter the blindness that other people refer to. I did have two cases of popeye which I have never had in a saltwater fish before. One fish recovered completely with standard antibiotic treatments, another fish lost an eye but was otherwise ok. They seemed generally fragile, and prone to disease, especially when compared to other clowns which I consider to be more or less bulletproof.
I will not try these fish again until I have a large deep community tank. I don't think they will work well in anything less than 100 gallons or more, though other people may disagree with me. I know some chrysopterus can eventually settle down and become good breeders in small tanks (even as small as 10 gallons) but these fish seemed really skittish. They seemed a little more pelagic to me - more free roaming - and less like the stay-at-home-in-the-anemone type.