Yep, also use confluence wiki for a customer and it is horrible. For another company I use mediawiki. Nothing beats that. Easy to edit, easy to maintain, good

Yep, also use confluence wiki for a customer and it is horrible. For another company I use mediawiki. Nothing beats that. Easy to edit, easy to maintain, good search capabilities, plenty of ways to extend. Edit: for updates of mediawiki use installatron, for structuring documentation you can use categories.