Care to share what issues are you having with the UI?
Its explained in detail on the last couple of pages in this thread but the jist of it is my prefereed codec is aiff and although this codec is 'fully supported' by the Jr, album art is not apparently. So i cant get album art with the codec of my choice even though it is meant to be fully supported. I would not have bought this device if I had of known the codec of my choice is not at all fully supported...as claimed.
I really don't want to convert all my files to flac for a few reasons...which I wont bother going into again right now.
Besides my aiff album art issues I'm finding the scrolling down artist and albums very tedious and clunky. Smooth...NOT.
I've also got a weird thing happening when I'm randomly playing a play-list and then pause it until my next listen and then play again, it randomly goes and repeats the same songs that were played on the previous listen. Weird.
But none of these things are really important. My previous players I used on the go were ipods, iphones and the Galaxy S7. These all have WAAAAAAAY better and smoother interfaces....but the Jr slaughters them in the SQ department which is the main thing.