I use an Apple keyboard with my PC.
On the plus side:
1. Compact design. It covers a minimal desk space.
2. Slim and easy to press keys are very nice.
3. Home-end-pgup-pgdn are not at eccentric locations.
4. There are 7 extra F keys you can use to assign functions.
Cons:
1. F keys are not in groups of four. I didn't realize this would be an issue, but apparently muscle memory gets some help from the small space left between F4 and F5 to discern the key when pressing Alt-F4.
2. Price is higher than it needs to be. I figure it's Apple tax. To boot, I don't get the opportunity to show-off at a chic bar to impress ladies.
3. No scroll lock key. Ergo no scroll lock led. You probably don't need it, but I do for some reason.
4. No num-lock led.
5. No windows key and the context menu key. Instead you get useless cmd keys. (There's a marvelous utility called
sharpkeys to remap keys for good though. Use it. Use it. Really.)
6. No printscreen key (see sharpkeys).
7. No insert key (sharpkeys again).
8. There is a freaking "=" key on the numpad, claiming the space where "/" should be. Do I look like an idiot? Who the hell needs an "=" key on the numpad? The idiot key replaces "/" and subsequently causes a chain reaction with "*" as well. And the "+" key is a single row key, not a two-row one. (thankfully, there's sharpkeys).
Well, to sum it up, you get quiet and slim keys, and some issues most of which you can eliminate with sharpkeys. I do recommend it.