I currently have one, doing very well. It was very shy at first, it ate like a pig but would stay in a corner of the tank just hanging out, after about 2 weeks it finally came out. One of my favorite fish for sure.
I have had one for a year now, and it is doing fine. It eats frozen foods, mysis, pellets, IO Cyclop-Eeze: in other words, anything that hits the water except flake food. Here is a recent picture: