I like how I can reuse books, topics, and parts of topics to create online knowledge bases for different audiences. It's also incredibly helpful that hyperlinks are objects so it's easy to identify the impact of removing a target topic.
I'm not sure what I really like about it. I'm really just comparing my past experience with MadCap Flare and it is the support via AuthorIt when you have an issue that helps as that has been quick and helpful at times. AuthorIt is also easier to use and understand. I'm OK with the usability and organization of topics but there are a lot of buggy things that drive us nuts, so I am hoping I can share some of that here.
Automated workflows noticeably ease the workday. The user-specific output using ProCSS is very helpful in this regard. The translation tool based on XML also makes collaboration with external offices particularly easy. In case of questions or problems, the first-class and fast support is also convincing.
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