The buttons, as I've said, are laid out to make sense, but I don't think the shape of the cap is quite as good as it could be. If I'm not mistaken, that is the same orientation of a standard computer keyboard. A whole slew of companies have brought out more ergonomic keyboards that turn the hands slightly in response to repeated complaints from users that flat is not natural. This means Labtec's Spaceball might not fatigue the wrist as much. Of course, the amount of fatigue will vary from person to person, but it probably won't be enough to make one device outshine the other.
Installation is pretty straightforward, taking only a few minutes.
You just hook it up and fire up the computer. A little bit later, it's done. One entertaining side of the device is the color schemes it can come in. There is even a cosmic motif and the option to get your company logo stenciled on it. Its solid construction will also benefit those who tend to be tough on their hardware.