CB is a VERY complete community component that is VERY sophisticated. CB offers great flexibility and scope of use when you understand how the component can be adjusted.
User lists and search functionality are great and NOT included in any other community component for Joomla in the extend CB offers it.
Support is excellent and FREE!
At this point, THANK YOU CB team for all the great work you have done and for the GREAT CONTRIBUTION to Joomla and community building, thank you.