The lady and right keys are easy. But up and down are difficult. With the half height left and right keys itβs easier to find the up and down keys. The down key is between left and right and the up key is an island (or a peninsula at least). Does that make sense?
I bought the last half height model when I upgraded my MBP 13β.
I can find the up and down easily because they are shaped differently. They are the only keys split horizontally, and the connecting edges are curved inward unlike the other keys. I find them easy to feel fore. I am glad the new keyboard solves this problem for others though, I don't think the full-height left/right keys are particularly better.