It's awesome. I've had my own Delphi clone for about a year now, and as a company we send all our customer support requests that involve subject matter expertise to it. It's exchanged over 30,000 messages with our customers and followers, and we've heard back nothing but glowing reviews. It's essentially a new, much more effective and conversational search engine for the huge volume of content I create, plus adding an interactive layer on top of that content.