FR : KeyGrid / Keyboard / DrumPad : glissando trigger notes
I’m missing one « basic » feature on KeyGrid / Keyboard / DrumPad : be able to slide my finger over several pads/keys, and trigger different notes, (as is would normally work on a classic keyboard )
Of course this would be compatible with the current Glissando feature ; it should probably be another Glissando mode…
The poor piano, I would leave that feature to traditional keyboards or there would not be a single advantage left…; - )
The LinnStrument does have such a mode for non MPE sounds btw. But I never use it.
Its as if you would complain about the same thing with a fretless bass vs. a fretted one… They are just different instruments, they do different things…
I don’t really like the piano layout on the ET, by default its a bit too wide… and if you make it narrower its not as playable … isomorphic layouts feel much more natural.
that said, I do use piano layout sometimes for simple note-entry on a hardware sequencer.
as for non-mpe, I use this more than I expected … mainly with modular…
its really fun setting using big pads to control eurorack… and Ive no where near enough modules to do MPE in my modular setup 
its interesting…
my other expressive controllers I tend to use mainly for polyphonic expressive sounds (mpe or not) .
but the ET, I tend to use more as a flexible controller … switching between large pads/piano/isomorphic … and mono/poly and mpe.
Ive not used things like ‘controller’ schemes e.g. x/y pads, sliders , buttons … but I could see myself using these at some point