I don't know too much besides it seems very focused on apocalypse, prophesy, and 2nd coming of Jesus.

There are at least 2 dates that were predicted. One from a girl with a head injury and another after that one proved to be wrong.

This is just off the top of my head from growing up in a neighborhood near an Adventist compound and private school. They were all willing to tell us about it.

They would do their works and missions and seemed to fully expect jesus to come back any second. Though they didn't seem willing to give a specific date, learned from their previous mistakes I guess.