Yes , I like this feature but this app does seem to be very complicated.
I am not sure of the price differences, but though a couple of the things to do are not intuitive, yet once you do the process once, it is very simple, and I like simple.
The way that I Song book, pretty much the complete process... first I tell it to accept input from the BT pedals, which of the 4 buttons executes page forward, page back, song forward and song back. This is done once and never again.
I then use the camera of the iPad, open songbook, select picture to PDF, take a picture, if there are 2 pages, I take 2 pictures... then give the file the name of the song and save it. The song is automatically entered into the list of all songs. If I already have the PDF, I move it to the Songbook directory, once there, I open the app, and import all the songs that are not imported by clicking on the right button on the main page... actually takes longer to type than do.
To see the song, I tap on that song, it opens. To close it, I tape on the "X" top left side of the page, app returns to whatever list you selected (in this theoretical case, the list of all songs).
The are only 2 other things that I do... program to change settings on BK and 8X and make specific lists.
Lists are easy.. (open list of lists, click on "new..." once a list is created, give it a name, click on the green "+" symbol beside any song to add it, click on done when ready.
The last thing I won't mention how (to add the info on how to change programming), it would take about 10 minutes in a video to explain it, but it is far from hard... the biggest skill one needs is how to count from 0 to 128 and enter the right numbers... lol
It may well be worth it to look at other options, but I like all that the Songbook app does for me.
