charly - If the tool can track and discover metrics you would have never considered, it’s worth your investment. If you find the tool is just reaffirming metrics you already knew, it’s not needed.

red8 - I have worked with SaaS for a very long time and have read many useful articles on the topic of developing it. I can recommend you to search the Internet for articles like the one I found on the site <a href="https://cxl.com/blog/active-directory/">cxl.com/blog/active-directory/</a>. This will be very useful for you if you want to learn on active directory for saas.