I agree 1000% .. there are also have a few other minor things which dont work quite right with this AYON unit, and the unit isnt that old .. (i) re the digital up-sampling light .. only the top portion lights up, so the lower LEDs dont work; (ii) I always set it to 'entire CD replay' .. first, this should be a default setting, like on my melos sony drive, not something you have to set with each CD you insert .. also, after so many repeats, the counter locks up .. easy to reset by pausing and restarting, but nevertheless something which should never happen; (iii) also I like the track time to count down .. again I have to set this up for each CD which is more than annoying .. it should be a default setting; (iv) also if the remote control breaks, you are basically out of luck, since very few options are available on the player (again, my melos sony had everything right on the player, as well as on the remote)
so re the user interface .. its clear AYON spent most of its time engineering the circuits, and very little time with the user interface and digital information stuff, both of which are weak (and would be trivial to fix)