Get it. It works. Easy to navigate and admin. iCal feature is what sold me. Pro version: I'm giving this 5 because it does everything it promises and the developer is very open-minded about enhancements, not to mention prompt and clear in his support responses. I think a more developed user manual would help, that is, more step-by-step instructions and clearer demos. What's there is very helpful, however. My wish list includes being able to add members to events from user profiles (e.g., integrated with Jomsocial) and have group notified, with iCal attachments. The developer takes you seriously — another plus. It's a real, grown-up extension.