I have to say that the A8 release is better than I expected. It certainly has a ways to go, but so far I have had few problems.
One of the issues I just noticed is that when I hover over a verse in a book, the window pops up partially off the screen and I can't see it. If the verse is located near the middle of the page it is fine, but if it's off to the right or bottom of the page I can't see the passage.
I just downloaded a new book to see how that process works and it was quick and easy. I opened the book almost immediately after downloading and it is indexing right now.
Keep up the good work!
Roger