The Logitech keyboard has it all! It is very very flat. The keys are slightly curved inwards and the stop is really quiet. The Klavielack and the white back not bother me. On the contrary, I finds somehow chic. When I bought it, I was very afraid that the matter of the solar power could be a problem.
Nope! Only the desk lamp can be a link to the "much light falls-grade on-your-keyboard-display" complete high powers. Even if you live in a cave and you are active only at night, that does not matter, because after full charge, the keyboard can get by a mere 3 months before light.
I do not see how this keyboard could be better.
It is expensive, but also forward-looking, incredibly sympathetic and has everything your (my) heart desires.
Finally, again the Tip: If possible, always test the product in the store, tap.