I started experimenting with Joomla.
My host installed it for me, so can't comment on that step.
Finding a decent template has been a pain. Aside from the fact that most Joomla templates don't appeal to me for one reason or another, almost everyone is charging for Joomla templates--unlike the TON of free and good-looking WordPress templates out there. I don't have a problem giving somebody $10-$40 for a good template for their hard work. I just can't find a good template that is SEO-optimized. So far they have a bunch of clutter. I gave up and started modifying the basic layout.
Also figuring out how to put page elements where you want them is a learning curve. Not rocket science but takes some hours when you're getting started with Joomla.
Installing add-ons was easy. You can just point it to the gzipped version and it goes from there. For WordPress you have to download, unzip, move files to the right place, upload, turn it on...
My goal with Joomla is a content-oriented site, with some community features, and I'll tack on some arbi pages or at least shopping/aff pages as experiments somewhere under the radar.
I've also got an install of Drupal I'm going to experiment with after I nail down Joomla.
So anyway, so far Joomla is taking too long for what I want to do with it. But maybe after I get the hang of it, it'll be faster.