Pretty good but... Ive been using this app for over a year and a half  and have had no problems with app. I was pretty happy with it  but recently I've been having some issues with it. To make finding books easier I have placed them into folders for easy finding  however I've been noticing that those books I had placed there keep disappearing which is really annoying. Also  when choosing the series option it does the same thing they disappear. I don't know what happened  but PLEASE fix this problem.
November 14 2015