When we started using Chisel we were able to build it up without reaching the assistance team. This is to say that the UI is intutive and easy to use. Creating and editing epics in roadmaps is simpler. We also like the hierarchical system which benefits us greatly. Most impprtantly Chisel is pretty straightforward to use, and has just the right tools needed for product management, especially for a junior PM, who may find complicated tools to be overwhelming.