according to the title and article i should be using G-WAN for my static files, which i've never heard of before. i know nothing about it other than it apparen

according to the title and article i should be using G-WAN for my static files, which i've never heard of before. i know nothing about it other than it apparently serves more files per second than nginx, lighttpd, and apache. but, i should be using it. do you really recommend operating like that?