Many doctoral students ask about my postdoc experience. It was, in a word, AMAZING! As I often share with them, it was amazing because I was intentional about my choice. To me a postdoc was not a "backup plan" it was the only plan. Planning for a postdoc will help to ensure that you select an opportunity that will meet your career development goals. Being strategic about where you postdoc and who you choose as a mentor will make or break your experience. Here is one resource for thinking through the process: https://www.nationalpostdoc.org/page/GradStudentChoose