I am working on a community events calendar site project which requires several features including 1)the ability for the public to register and submit events (and edit only their own events), 2)event export for use in other publications and 3)ability to handle complex recurring events. I "interviewed" several of the popular event calendar components (JEvents, JCalPro and Ohanah) and RSEventsPro was the only component that had all of those features(and more) and was easily customizable with CSS and template overrides.
The customer service is awesome(courteous, prompt, honest)! I had several items that needed to be addressed as I configured the component. Every support ticket was responded to within 24 hours (or earlier), and all of my issues were resolved.
Easy to install the component and modules. Easy to configure.
Experience level: 5+ years building Joomla sites