I be use it over a half year now . still I love this combo . the keyboard be sleek , so comfortable to type ; function key be so useful in many way . it beautifully work with Windows 7 x64 bit . mouse be very comfortable to hold . Main key point be that function of both keyboard and mouse be programmable . if you do not want or want certain button to do certain action , you can change it use its driver . I do not know why people be complain that they could not use f function . however this be true , if you do not install the driver come with it . this should be problem once you install the program call `` setpoint '' . mouse work when I be 3.5 m away from computer . I could not test it further . that be limit of my room size . it work on virtually every type of surface . mouse look a little bit oversized on the website , however it be not . nevertheless , it be a little bit heavy , if you be use to super small , light mouse . I be use this combo along with my laptop and external monitor .