There are some strange buttons, and there is not much space between the function keys and the main unit; however, after using the device for two to three days, you will not even notice these characteristics. Even without the use of illumination, the markings on the keys should be able to be seen if there is sufficient lighting. If the ability to type in other languages other than English is crucial to you, it is vital that you pay careful attention to the layout of the keyboard you are using. Under Linux, it started up without any issues, and all of the buttons are functional; however, some of the function keys needed to be modified; however, Linux:)