I attended the first trial of the new interface, and think it was a resounding success. The basic chat features work flawlessly, and I loved the feel of the more advanced features as well. When someone replies to you, it is extremely easy to recognize it from the rest of the entries being made. I found that highly helpful. The only thing that I noticed that might need adjusting is that there is no scroll bar to cycle through the comments. Myself, I have a wheel on my mouse, and that works to perfection regarding scrolling. For people without a mouse wheel though, I think they would likely experience issues.