I know a few people that do. There good fish, some eat hair algae but its hit or miss. They are peaceful and can get to be bigger. Very cool looking fish.
There's one in the FOWLR display at a LFS I do some part-time work at. It's shy. Seems like most Rabbitfish are a bit shy, at least the ones I've dealt with.
It is pretty big. Wouldn't recommend it for anything under 180 for long-term.