I agree. The iCalendar specification allows for some crazy complexity, but I'm not sure I've seen a UI that allows you to use every feature possible with the sp

I agree. The iCalendar specification allows for some crazy complexity, but I'm not sure I've seen a UI that allows you to use every feature possible with the spec. I'd think you could do a "discoverable" UI, where the default case is is relatively simple but you can expand recurrence options when needed. If anyone has an example of this being implemented I would appreciate a pointer.