evaluate Drupal modules

7,093 modules currently available for Drupal 8 only... Now, assuming that you've already made your selection, that you've put together a “pile” of potential module-candidates for your project: how do you evaluate those Drupal modules? How do you narrow down that list to the truly valuable and perfectly suitable ones for your own project? How do you assess their value/quality? Their level of stability and security? How do you determine whether they're fit for your own project's needs? What criteria should you be using?