A dual band gigabit router with great throughput and many useful features.
The triple antenna seems to give far better WiFi coverage than the single antenna box it replaced.
The fact that you can use the USB port to offer shares on the network to all your PCs is excellent - I installed a memory stick on there with lots of recently downloaded TV content and all the 5 PCs in our house could play them at once - great performance.
Does DHCP, FTP and of course acts as a Gigabit LAN hub. Hundreds of configuration options if you're a fine tuner! However, with the default parameters which it adopts out of the box it will do everything that most people will required of it. Yes, using this as the hub of a wired network the PC to PC transfer rate was just excellent - I measured about 700Mbits/second average whilst copying a large video file between machines. 50% faster than the hub this replaced. Very pleased with this all around.