The speed of the TM1 engine. When a planner can change a driver and see the impact across the model right away, they stop treating the budget as a once-a-year exercise and start using it to answer questions. Planning Analytics for Excel is the other big one. Finance teams don't have to give up Excel, and you still get one governed model underneath it. Review collected by and hosted on G2.com.
The learning curve on rules and TurboIntegrator is real. A well-built model is great for years, but a poorly built one is painful, so who builds it matters a lot. Planning Analytics Workspace has gotten much better, though some admin tasks still take more clicks than they should. Review collected by and hosted on G2.com.