The flight school I work for has one, but it's completely inop.
It was used until some time late 2010, when something in the electronics failed, and the simulator could no longer "take off". After it was discovered that getting the thing fixed would be amazingly difficult (there was maybe one person in the state who knew how to repair it), the owner just spent the money on a newer X-plane based simulator and left the AST-300 as a room-sized paperweight.