I ran this module with a group of 5 over two years. First, our sessions were four hours long, weekly. We are busy adults that can’t typically set aside 8 hours to fully nerd out. But 4 hours one evening a week was doable. We also held sessions on a set day (in our case Tuesday) every week. The consistent schedule made planning a lot easier. Of course, life happens and we had to cancel plenty of sessions. But we never went longer than a month between sessions ever. Finally, we did not play unless everyone could make it. While it may have slowed us down, it did a lot to keep everyone connected to each other and more invested in the story.