It is a huge improvement over the low bar set by Overdrive. I use Libby everyday with my children and I think my three complaints are:
1. Filtering and categorization can be confusing: I have a difficult time finding books that are age appropriate for my daughter and available. I end up memorizing favorite authors as that is easier than the filtering.
2. The four buttons at the bottom are… interesting? The “library card” button the second from the left does… what exactly? I have never really understood the purpose of that button or why it is shaped like a card.
3. Figuring out how to exit a children’s book that is read “within” the libby app is inconsistent. I can never figure out how to reliably call up the UX to exit or change books.