The user interface is just awful. Selecting a chapter from a book doesn't minimize the side bar to display the chapter selected, it just loads the chapter behind the side bar, and tapping the page to view it reloads the previous chapter selected. Back arrow? Goes back to the main library selection. The text-to-speech is an easy 7/10 though. It messes up a small handful of things like numbers/years, but for the price (nothing extra) it's fantastic.

The audio feautre has improved, but it is still off in pronunciation and reads off punctuation and references. Reader does play when the app is not open, but will randomly stop. The app used to have a feature where you could pause the audio without unlocking your device, but this has since disappeared. You now have to open the app to stop or start audio.

Useful to a point. Could expand its editing features on how pages can either be scrolled entirely, or be displayed page by page. Some books have the option, most don't. Other problem is the lack of clear direction in acquiring a QR code. It's not streamlined through the app, website, and software versions of Vitalsource. Each one should have the same functions and features of at least the account settings, rather than appearing to be built by different teams who did not communicate one another.