For a wiki especially, our team spent ages searching for one that was hosted, private and searchable. Confluence seemed like the only thing with a decent search.
Major drawback of Confluence I've found is that Markdown is not first class, and only supported via some shitty plugin, that renders badly to boot. But the rest of the company (and half my tech team for that matter) doesn't really care about that (the default wysiwyg stuff looks good if you stick to the guard rails).
Still, we're not aware of a better thing we could move to?
