Went last year. To be completely honest it wasnt a total waste of time. I know that sounds wierd but the main instructor was good at applying bible principles and he really wasn't doing a Watchtower comercial the whole time. Maybe he's a closet apostate...who knows.
That being said, the other instructor, was a total company man. Boring, do more, preach more, follow the slave, and then take care of your family. Oh and if you dont take care of your family we will delete you and you will be a leper in your congregation.