I ran a recursive transit one shot this weekend for two of my long time players. Took about 3.5 hours after character creation.
It was one of my favorite GM experiences, along side The Forest Queen incursion from Trophy Dark.
The loop is so much fun. I was worried about the 20 minute timer being too short, I did stretch it a few times, but wow it was so perfect. Seeing the players react to being looped back was so satisfying. They got progressively frustrated and started arguing with each other.
The document is easy to follow and gives the GM so much to work with. I think it’s great. I’m running it again this week.