Updated by Carter Mattoon, who has heard or played the organ.
In mid-2018, the organ has been partially restored. The restoration is incomplete but it is unknown (to me that is) how close it is to being restored. The organ has many dead notes.
Updated through online information from Eric Dolch.
Online update from David Kinyon -- Like its big brother, due to renovations in the hall, it is unplayable, although intact and unaltered. It is one of the largest theater/classical organs Kimball ever built. Full details are available on the ACCHOS website