This is a plane with really good systems, a nice feeling flight model and a HUD that i actually want to use. however with all this complexity the documentation is pretty poor. it is limited to a checklist that is of no use if you want to learn the plane, a introduction to the FMC and the operating limits. there are no guides as to how you are supposed to work systems like the fueling panel or the control panels for the Proline avionics. there are also several features that you either have to have watched the developer streams to know are there or learn from other people