Looking after several other sites I have visited, I found some experiences during try to leave my comment or chat. In most of blogs using Cbox, I underwent difficulty on submitting my words. Most of them are failed being posted.
In the other hand, in some other blogs using Shoutbox, I didn't find those kind of problem. Almost all of my shout were successfully posted. Base on my experiances, I can justify Shoubox is better than Cbox, especially in its respond and the easiness to post any shout. I didn't compare they other features.
What about your experiences?