Answering this from business and content perspective, BrightEdge is an amazing tool that provides an easy interface to understand keyword research on the desired languages and countries. This come useful when you do your own SEO research - before briefing sent to agency,
It has customized chart and tracking personalization in case you want to keep things on closer look. However on this, it is very recommended to take your own time as it takes an effort to understand what data you need the most.
They also have good Customer Success team that can help guide you on use-case scenario. Review collected by and hosted on G2.com.
There can be improvement in terms of individual training materials that can be taken separately. Review collected by and hosted on G2.com.