I own a g84-4100ppagb and feel that some of my keys are just plain stiff, not sure if this is due to break in period yet. But due to my main computer being out of commission and no proper ps/2 to usb cables available, I haven't used it much.
The keyboard is too american with the little enter key and big left shift which I don't enjoy using, I much prefer a british/european style keyboard. So i'm waiting for a g84-4400 trackball one which is much closer in layout.
Yes the 4100 feels to have two a step action, but i'd rather have a smoothness of the black mx cherrys or the dual click action of the blue cherrys. I think with a lot more use though the 4100 will make me a better typer if im forced to press the centre of the key down, and with a much lighter touch and shorter travel so i can be faster.
What i feel cherry could have improved the design of the keyboard by removing keys and moving their functions on to other keys using Fn. Like with my psion 5mx, i'm so used to pressing Fn with right arrow key is "end" key, Fn with left is "home" key, Fn with up is "page up", Fn with down is "page down". Thus giving more space for a larger backspace, and enter, and the key above enter. Compact keyboards are usually just a hassle to get used to layout at the end of the day, but once you use them more normal keyboards just seem easy.
I haven't played with the hhkb range at all so have no idea how good they are. But if I can get my hands on a blue cherry smk keyboard that would be an ideal keyboard (although still problem of american layout).
