I have been playing with Postnuke for a few weeks now, and I have to
admit that I am disappointed.  It is a very cool product, and has
a lot of functionality, however there are a number of key features
(IMHO) that just aren’t baked.

I installed Postnuke for a new web site that I have been working
on.  One of the core features of this site is a calendar of events
that I’ll be maintaining … and yet I can’t yet find a rich calendar
module for Postnuke.  I installed the PostCalendar module, and it
is very powerful … but just not completely baked, and there are a
large number of outstanding bugs.

One of the most important features that I want to have is the ability
to publish repeating user group meetings, and then customize the
individual instances with the meeting details as they become
available.  PostCalendar will not allow me to do this …

I’m now back looking for a good, complete Content Management System.