I've only just started using this app. It's my favorite I've found so far in term of ease of use. There is one major hiccup, which is kind of a deal breaker for me. It only scrolls down through the document. I need to be able to swipe through mine like a book. I'm honestly surprised that it isn't an option, as it is on most notetaking pdf apps. Let me know if that gets added and I will gladly switch to this app.