Like most folk, I run a wireless network at home. I wanted to bring the internet to my Xbox in the living room, but I didn't want to pay Microsoft way over the odds for a wireless adapter, and I wanted to firewall the Xbox off from the rest of the network because I knew I would need to open a couple of inbound ports for it, and I didn't trust Microsoft to stop the thing getting rooted.
This little box sorted me out completely. It operates as a wireless client on its WAN port, and contains a firewall, a DHCP server and a router. So now I have four wired ethernet ports in the living room, on a separate subnet from the rest of the house. And it has been up for over a month with no need for a reset. Problem solved!