We leverage PatternFly for UI patterns both in the login screens as well as the admin console. One problem with the login screens is that the pattern/recommendations from PatternFly only has simple username/password and doesn't cover the more use-cases we have. The PatternFly team is currently working on extending and improving the login screen patterns to cover more of our use-cases. Please review and comment on their mockups at https://redhat.invisionapp.com/share/59DNSUUZT#/screens/255230613_1