It talks to you and listens to you. The listening feature is one of the major features that influenced my purchase. I like the fact that I can speak a place, a saved location or a new address and it gives me options if it is not sure. I do not have to pull over and stop to touch screen the address or favorite, I just speak it. It does not like the radio on, others talking or the heat/ac fan on high speed - it gets confused. I lower the fan speed, mute the radio or turn it down and all is pretty good. You can change how it listens. I have Ford Sync so I needed a different command, not "Voice Command" or the car command would activate. This device allows you to change it. I have "Garmin Listen" when I speak a command.
Also nice with this model, it gives you a reference point, such as turn right after the school, or turn left at the next street after the railroad tracks, continue .5 miles after the mall, etc. . .

The actual characters on the keys are lit. Fn keys also have a secondary color that lights for their function.