I used the keyboard as an admin for the installation and maintenance of several touchscreen diagnostic computers in our workshop network (All Windows 7) and can only positive things. Radio receiver is detected super fast, even faster and easier than the previously used by me HP USB mouse and keyboard.
So far everything super: + Rapid detection under Win7 + Nice small and light + 1 USB port for mouse and keyboard
Negatives: - Battery takes standard batteries - Via USB cable only charging function