Starting with Fincite is easy. You only need a couple of hours to get yourself going. Then, you can make your first models yourself. The level of detail of these models is driven by the time you will be able to dedicate and the information available.
Fincite models always are complete and comprehensive. I.e. all costs in the general ledger are distributed via operational entities to departments, services, locations and/or clients. So, the model always shows the entire picture, with correct relations, ratios and dependencies between entities and their activities, and a correct insight in their individual costs.
Key characteristics of your first model are:
It is relatively simple to implement substantial changes, such as a reorganization.
The model is a common language; everybody uses the same terminology and definitions.