I changed the mechanical hard disk for a SSD. Installed Win7x64 Professional (personally I hate win8). But like usual, the network, video and sound drivers are missing from the windows default installation. Asus website doesn't appears that model nor a drivers searching page. Stinks!
I can't get higher than 54mbps with the Q551LN-BBI706 over wi-fi even when right next to the router. My external usb network card can easily get 72.2mbps from much further away.