Estimations is an important factor in our prioritization and decision process and a weak point right now in Aha!
Right now Aha! surprisingly does not allow to build a simple list report that could show all initiatives/epics/features with no estimates entered which basically keeps us from using this information properly.
It seems like estimates are stored in minutes by Aha!, so even by just giving the ability to consider this information as a regular number value, that would be a good start.
Exporting to Excel to accomplish this very simple task is time consuming and remove the flexibility of working with other filters on our reports (workspace, theme, etc.)
We were also hoping to find through reports any epic that has or has no estimates while some features underneath may or may not, to ensure our product managers had been consistent when entering their estimates at one level or the other of our hierarchy.