I haven't been able to monitor it for a couple months -- I was waiting for anyone who has been monitoring it more recently to post.
Back in March all I was hearing was the OEM roll-call on the TGID mentioned in the database, occasional chit-chat between what I think was an OEM mobile unit and central on those same talkgroups, and occasional encrypted comms on another talkgroup. I think it was in the 30s and I assumed it was the prosecutor. There wasn't enough use of it to make me suspect the prosecutor was using it for most or all comms, though.
From what I've heard there have been a handful of installs, mostly for the Prosecutor and/or OEM, but no full switch to it for any department. Last time I checked the Hightstown tower was in a license-saver mode with a separate control channel but no traffic.
From time to time there is some interesting chat on it so it's a good idea to keep it in the scan list. But if you're on the fence, don't go out and buy a digital scanner yet just for this system.