Drupal

Recent experiences are:

6.5 is nicer than 5.x

5.x is better supported by stable modules

there are some cracking modules (like CCK and Views) that make it a framework not just a CMS

install is quick and easy, but building it up takes time.

I still haven't got my head round the theming.

it feels like it has loads of potential.

www.workalone.co.uk is now drupal powered and the wiki is now a 'book' that can be edited by authenticated users using mediawiki syntax.

the host you install it on determines some of the facility you can enjoy - e.g. the various revisions and configurations of PHP affect which modules and which version you can run.

what's bad about it remains the same -

modules sometimes clash, it's not always straightforward to see where the new functionality you just added with a module is located.

installing and enabling several modules at once is not a good idea - hosting limits on memory and MySQL configuration can prevent Drupal functioning.

for a user it's a confusing array of menus and a paradigm (nodes) that needs getting used to.

my recommendations:

install it

enable a core module at a time and play with them
enable different levels of user and play with them

add and enable one third party module at a time, be prepared to scrap and start over during this learning and expanding process.