Contrast Keyboard - Large Keys and Extremely High Contrast

I really like the large keys and the feel as you use them. My wife has a problem because the keys and the shift key (only one to make room for the bigger keys) are different from what she has been using for 40 years. It might be difficult to learn some (just a few) new key placements. I'm a "hunt and pecker" typist at best so not much of a problem for me. The keys are a little louder than most keyboards but once again that is personal preference, I don't mind it.