The many customizations that customer service enables. The prices in this regard are also fair. Also good is the easy integration of the help page, e.g., in apps. What I find helpful is that articles do not need to be re-uploaded during updates, but only republished. The whole system with URL matching is also good, especially because you are now warned if multiple articles or folders have the same URL. Review collected by and hosted on G2.com.
Overall, the translations are often very literal. For technical terms, I lack the option to provide a glossary. At least there are "Protected terms," which are helpful for terms that should not be translated. Review collected by and hosted on G2.com.