The features that I have found most valuable are the Bayesian statistics and descriptive statistics.
IBM SPSS Statistics offers quick report creation with custom tables and macros while supporting transparent data analysis by allowing users to view datasets post-transformation. Although excelling in advanced statistical methods like linear regression and machine learning, SPSS's large dataset handling and visualization need optimization. Users find its statistical capabilities robust, yet expanded modeling functions and improved technical support are desired. Documentation enhancements for macros and programming can aid beginners.