One big thing that I noticed that would keep me from switching from my current Bible app, KJV Bible Lite, is that there's no offline mode. I can't load any chapters without a connection. I like that there are several translations available, but generally, the text isn't so big that it couldn't simply be stored locally.
Also, while I really like the idea of videos being available, there are tons of textual commentaries available for each book and chapter of the Bible. I have a few physical copies from various authors and publishers that I like to reference while studying. I'm not sure how viable it would be to include in an app like this due to various factors (eg: I'm not sure if a lot of the known commentaries in print are available online, especially for free from their publishers), but it would be an excellent addition. Especially too, I'm already reading the Bible. I think that switching to watching a video could take me out of the flow of reading once the video was over.
I'm going to keep using this and see if it can give me a better experience than KJV Bible Lite