Even the basic game is just great. For people who are well and happy to organize, plan and maneuver the extension is just right. Here come 'job card' to pretend like you have to prove boxes to obtain additional Taler.
+ Additional funny beans + Job tickets, prompting the planners in a + Healthy mix of own planning and interaction with the other players (as in the basic game)
Conclusion: If you like the basic game, which like the extension in any case!