This keyboard is designed to have as similar layout to a PC keyboard as possible. See the screenshots. For those people who know where the keys are on a PC keyboard and don't like the layouts that come with other android keyboards, and miss the number keys being there all the time.
The keys are a little narrower than other soft keyboards, but that's so we can get more keys on each screen, and mimic the standard PC keyboard.
Features a control key (great for terminal and remote machine use), and a 'keypad' screen with arrow keys which work. Arrow keys send the 'DPad' up/down/left/right control codes which not all applications handle the same way. (Note: If you're using the android terminal - be sure to use the 'ash' shell for control/arrow keys to work. Not fault of the soft keyboard - fault of default 'sh' terminal.)
Other than that its a simple keyboard, with simple word correction. Nothing fancy. Just simple and easy to use.
Now you can configure sound on/off via the Android->Settings->Locale & Text page.
Works great on tablets or larger displays.