dashboard and mobile app support is awesome
this works especially well for small businesses who simply want a no-hassle, great-to-use live chat system
I am going with Zopim for my chat platform as well. Excellent features and a great team cumult.com
In terms of backoffice support - the best choice available.
Without any doubt the only service that manages to both have advanced features and user friendly interface.
I like the complete dashboard with useful tools like shortcut answers. I don't like that it's in flash. I would love that they use status instead of messages like olark to notify user presence in IM mode.
This service should be much higher on the list. They provide great info on your customers, and work really well with Adium on the Mac. Top notch customer service as well.