I run DD-WRT for ten days. It is very cool stuff. The power, the flexibility, and the easy to setup. I like all of them.
The router is stable and it is OK to keep regular browsing and downloading job working at same time.
And most important is my VOIP device is getting the top priority.
CPU Model: Atheros AR9132 rev 2 (0xb9)
CPU Clock: 400 MHz
There are something I want to mention is the connection.
IP Filter Maximum Ports: 4096
Active IP Connections: 273
I can accept about 4000 connection at same time.