Another good page instant chat tool - VQQ Weiquanquan

I have used several page-based instant chat tools such as Gabble Chat and Sina's "Wo Kao", and today I discovered another similar tool made by ZW: VQQ Weiquanquan. It has all the basic functions, the speed is quite satisfactory, and it's very user-friendly - you can figure it out at a glance without much introduction. The demo is located at the bottom right corner of the page.