Long sought, only the Netgerar Push2TV 3000 comes close. The Actiontec is really super fast, very low delay. And all devices have been able to easily build connection (PC / Windows 8.1 and Android). For permanent installation good, because the adapter does not go into a sleep mode (Netgear doing despite other setting).
Disadvantage: Dedicated Power Supply and not supplied via USB. Firmware update via USB stick is rather tedious (other create the wireless ...)