This thing is ugly. Very ugly. The shock is worse than the Plurk first impression. It has decent basic features (that are already in Plurk, Jaiku, and Pownce). They claim to scale, but if I can't stand to look at it, who cares. I'm trying to get past it and move on. I'll submit feedback as well. But...ugh.
Agree it's not pretty but I do like that it has threaded conversations PLUS notifies you about responses (versus the Plurk guessing game). Plus the owners seem to be really responsive to input. I think there's some hope. But glad to see the simplicity of Twitter combined with smart threading.