If I am reading a book, no complaints. If I close my iPad and try to return to what I was reading at a a later time, then the frustrations sets in. Opening the app and navigating thru borrowing, viewing or reading the app freezes and or time out. I have to close and open several times before I can actually start reading. One positive with the last update, if I close my iPad while I am reading when I open it again it goes right back to what I was reading. But once I start to navigate, then frustration again