I have this device attached to my Sony Vaio desktop computer running Windows XP Media Center Edition.  When we moved into our current home, the lines for the modem connections were not in the office, so connecting wirelessly seemed like a no-brainer. 

I have had problems with this device, although I cannot be certain that it is the device and not other computer issues (it seems I'm always having some sort of computer "issues"!)

 Two main concerns...the connection is often lost temporarily...it sort of cycles on and off.  And if I ever unplug the device from the usb port and then re-plug it back...