5. Unfortunate limitation of current system setting. 6. I urged software team few times to make it bilingual. 7. Overall customization of playlists inside player is limited. 8. Not likely to have one switch that would be doing such a big change to structure of UI. 9/10. Software team is aware of problems with some special letters from different languages. 12. If you think loading album covers is slowing down player, you can change the playback interface to spectrum analyzer or analog decibelmeter to see, if there is any difference. 13. No update on that. 14. What exactly you mean by "doesn't work"? It should either give you message it's already on latest update or start downloading, when it shows progress of download. 15. Noted. There should be no problem using these IEMs with balanced 2.5mm cable (I personally always recommend to check if it's connected correctly with multimetr). Overall people prefer sound out of balanced output on our players, in theory it's the maximum you can get out of the player. It can be downgrade only if the higher output impedance would bring any issue with connected IEMs (think sound changing in CA Andromeda).