It all depends on your personal preference. The pass gives you immense flexibility.
Some use it do just randomly hop on the first train they can find and see where it brings them. Then they get off when a location looks appealing to them.
Some train lovers want to do as many trains as they want.
Other people use it as a cost effective way to travel a long way sustainably.
But you have also quite a selection of different passes. Flexible passes have a certain number of travel days, during a period. There are continuous pases being valid for a long consecutive period.
Many options, all depending on how you like to travel!
What are you currently looking at, in your planning?