It's a bit ropey to be honest. I installed a plugin to run a slideshow via Magento Connect, looked OK. Clicked the new plugin in the admin panel, and guess what 404 page notfound. It turns out that I have to flush about 5 caches, and then log out and log back in. And then it works.
You're going to need an IT guy sat on this every hour of every day taking care of it.
/ feel like having a moan, sorry. Someone was saying how great it was and how flexible it is, so I had to try it. Got exasperated.