I purchased a Music Pad Pro two months ago.
I put a lot of time into scanning the music but it is well worth the effort.

When I play at home, all of the music I play is in the MPP. In the past, my music was in many different binders and fake books.

I used the MPP at a one hour concert I performed on the accordion. I sat on a high stool when I was playing. The music pad pro was on a stand in front me
(at a lower hight with the screen tiltd up).
I had all the songs in a playlist and turned the pages with the foot switch.
When you are playing the accordion, it is very disruptive to turn pages. The MPP was terrific.

I have played a few ten minute piano preludes before a church service. I usually put together a medley of four or five songs. With the MPP, I set up a playlist and just tap the screen to move to the next song or page. When I am playing a medley, the MPP is so much better than a binder with pages to turn.

So far, I am extremely happy with the MPP and would recomend it to anyone. I have not used the Mp3 player, so those problems have not affected me.