The design provides both efficient storage and improved game play. Many of the trays can be utilised during the game, and they greatly aid set-up and clear-away times. The boards and player boards act as a lid on top of the trays.
While the insert does not have trays for the Trade & Intrigue expansion, to make the insert more flexible the slots at the bottom of the large trays can be used to store the extra event tiles. You can then place the cards and building tiles with the player bags.