I just tried Libby. the navigation is nightmarish, but the actual reading experience on a Braille display is pretty good. Until it's time to move to the next chapter. From what I've noted on the help topics for the Libby app page, overdrive works better for navigation, but not for reading. Has anyone tried both apps with a Braille display? I tried Overdrive several years ago, and it was unpredictable with a display. thanks in advance for any pointers.