The change to basically be the Kindle app with Comixology skin is awful. Hate that they got rid of smart lists. The UI is incredibly unintuitive and inconsistent. Tapping on a book in your library changes if you have one vs multiple books. Tapping on a book in the store just expands a UI section on the bottom to show a new button you have to click on to look at the book. Amazon messed up a great thing.