Just got mine.
Shelves
Still slow opening shelf menu with a mere 460 shelves
No slider bar but nice to have the go to page by number function
Nice to have the back arrow but would be nice if it went back to the page you were on in the shelf menu.
Display
Very nice
I count 78 words per page and 48 lines per page at the second font size.
Strange that the shelves go down to the bottom of the page and don't in the book you are reading. Not that I probably would have paid attention if it wasn't such a hot topic
Light
My first built in light.
Seems a little blue at a lower setting, very whitish at a higher setting but hurts my eyes.
Other than the shelf menu opening tediously slow it seems fast enough.
Probably I will keep it, not entirely sure yet.
Helen