True Custom Reporting

I would like the ability to build a custom report from all areas inside Intercom. Currently, I can only build a custom report around Conversations and Tickets. As the CMO, I need custom reporting around Outbound. 
The specific pain point I’m feeling right now is trying to find patterns in our NPS promoters/passives/detractors. I want to see if I can find patterns in each of those buckets. My only option inside Intercom is to go to the Contacts section, choose an NPS score range, and then manually add an additional filter (such as First Seen), record the results number, remove the filter and try a new one. It’s tedious and manual.  I can download the results as a CSV and then try to manipulate the data, but we have a lot of custom attributes and it’s still a very manual process. 
This is a report I would like to look at monthly, so having to go through so many steps when all of the data is right there in Intercom is frustrating.