One thing I would say – the old mallets were great, the dh are great.
However given the shorter q factor the current mallets (I would hazard the E also) sit too close to the crank to use with decent shoes over a size 9. (two pairs of 5tens and some old oniel things)
My winter boots are fine on the current 1,2&3 mallets (and egg beaters) but frankly there is no room for a “flat” shoe and I personally don’t see a lot of benefit to platforms with shoes that you wouldn’t use on platforms alone.
Of course with no experience of the E it’s just conjecture but it would stop me buying them unless I could try them.
The dh are excellent though and a smaller version (with same q factor) would be a winner for me.